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kolibrios-fun/kernel/trunk/network/eth_drv/drivers/rtl8169.inc

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Style corrected for new rules, no semantic changes git-svn-id: svn://kolibrios.org@2288 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-10-14 23:38:50 +02:00
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
1) Correcting information about copiright 2) VESA draw the small speedup git-svn-id: svn://kolibrios.org@2455 a494cfbc-eb01-0410-851d-a64ba20cac60
2012-03-13 17:51:57 +01:00
;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
Style corrected for new rules, no semantic changes git-svn-id: svn://kolibrios.org@2288 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-10-14 23:38:50 +02:00
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; RTL8169.INC ;;
;; ;;
;; Ethernet driver for Menuet OS ;;
;; ;;
;; Version 0.1 11 February 2007 ;;
;; ;;
;; Driver for chips of RealTek 8169 family ;;
;; References: ;;
;; r8169.c - linux driver (etherboot project) ;;
;; ethernet driver template by Mike Hibbett ;;
;; ;;
;; The copyright statement is ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;; Copyright 2007 mike.dld, ;;
;; mike.dld@gmail.com ;;
;; ;;
;; See file COPYING for details ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
ETH_ALEN equ 6
ETH_HLEN equ (2 * ETH_ALEN + 2)
ETH_ZLEN equ 60 ; 60 + 4bytes auto payload for
; mininmum 64bytes frame length
RTL8169_REG_MAC0 equ 0x0 ; Ethernet hardware address
RTL8169_REG_MAR0 equ 0x8 ; Multicast filter
RTL8169_REG_TxDescStartAddr equ 0x20
RTL8169_REG_TxHDescStartAddr equ 0x28
RTL8169_REG_FLASH equ 0x30
RTL8169_REG_ERSR equ 0x36
RTL8169_REG_ChipCmd equ 0x37
RTL8169_REG_TxPoll equ 0x38
RTL8169_REG_IntrMask equ 0x3C
RTL8169_REG_IntrStatus equ 0x3E
RTL8169_REG_TxConfig equ 0x40
RTL8169_REG_RxConfig equ 0x44
RTL8169_REG_RxMissed equ 0x4C
RTL8169_REG_Cfg9346 equ 0x50
RTL8169_REG_Config0 equ 0x51
RTL8169_REG_Config1 equ 0x52
RTL8169_REG_Config2 equ 0x53
RTL8169_REG_Config3 equ 0x54
RTL8169_REG_Config4 equ 0x55
RTL8169_REG_Config5 equ 0x56
RTL8169_REG_MultiIntr equ 0x5C
RTL8169_REG_PHYAR equ 0x60
RTL8169_REG_TBICSR equ 0x64
RTL8169_REG_TBI_ANAR equ 0x68
RTL8169_REG_TBI_LPAR equ 0x6A
RTL8169_REG_PHYstatus equ 0x6C
RTL8169_REG_RxMaxSize equ 0xDA
RTL8169_REG_CPlusCmd equ 0xE0
RTL8169_REG_RxDescStartAddr equ 0xE4
RTL8169_REG_ETThReg equ 0xEC
RTL8169_REG_FuncEvent equ 0xF0
RTL8169_REG_FuncEventMask equ 0xF4
RTL8169_REG_FuncPresetState equ 0xF8
RTL8169_REG_FuncForceEvent equ 0xFC
; InterruptStatusBits
RTL8169_ISB_SYSErr equ 0x8000
RTL8169_ISB_PCSTimeout equ 0x4000
RTL8169_ISB_SWInt equ 0x0100
RTL8169_ISB_TxDescUnavail equ 0x80
RTL8169_ISB_RxFIFOOver equ 0x40
RTL8169_ISB_LinkChg equ 0x20
RTL8169_ISB_RxOverflow equ 0x10
RTL8169_ISB_TxErr equ 0x08
RTL8169_ISB_TxOK equ 0x04
RTL8169_ISB_RxErr equ 0x02
RTL8169_ISB_RxOK equ 0x01
; RxStatusDesc
RTL8169_SD_RxRES equ 0x00200000
RTL8169_SD_RxCRC equ 0x00080000
RTL8169_SD_RxRUNT equ 0x00100000
RTL8169_SD_RxRWT equ 0x00400000
; ChipCmdBits
RTL8169_CMD_Reset equ 0x10
RTL8169_CMD_RxEnb equ 0x08
RTL8169_CMD_TxEnb equ 0x04
RTL8169_CMD_RxBufEmpty equ 0x01
; Cfg9346Bits
RTL8169_CFG_9346_Lock equ 0x00
RTL8169_CFG_9346_Unlock equ 0xC0
; rx_mode_bits
RTL8169_RXM_AcceptErr equ 0x20
RTL8169_RXM_AcceptRunt equ 0x10
RTL8169_RXM_AcceptBroadcast equ 0x08
RTL8169_RXM_AcceptMulticast equ 0x04
RTL8169_RXM_AcceptMyPhys equ 0x02
RTL8169_RXM_AcceptAllPhys equ 0x01
; RxConfigBits
RTL8169_RXC_FIFOShift equ 13
RTL8169_RXC_DMAShift equ 8
; TxConfigBits
RTL8169_TXC_InterFrameGapShift equ 24
RTL8169_TXC_DMAShift equ 8 ; DMA burst value (0-7) is shift this many bits
; rtl8169_PHYstatus
RTL8169_PHYS_TBI_Enable equ 0x80
RTL8169_PHYS_TxFlowCtrl equ 0x40
RTL8169_PHYS_RxFlowCtrl equ 0x20
RTL8169_PHYS_1000bpsF equ 0x10
RTL8169_PHYS_100bps equ 0x08
RTL8169_PHYS_10bps equ 0x04
RTL8169_PHYS_LinkStatus equ 0x02
RTL8169_PHYS_FullDup equ 0x01
; GIGABIT_PHY_registers
RTL8169_PHY_CTRL_REG equ 0
RTL8169_PHY_STAT_REG equ 1
RTL8169_PHY_AUTO_NEGO_REG equ 4
RTL8169_PHY_1000_CTRL_REG equ 9
; GIGABIT_PHY_REG_BIT
RTL8169_PHY_Restart_Auto_Nego equ 0x0200
RTL8169_PHY_Enable_Auto_Nego equ 0x1000
; PHY_STAT_REG = 1;
RTL8169_PHY_Auto_Neco_Comp equ 0x0020
; PHY_AUTO_NEGO_REG = 4;
RTL8169_PHY_Cap_10_Half equ 0x0020
RTL8169_PHY_Cap_10_Full equ 0x0040
RTL8169_PHY_Cap_100_Half equ 0x0080
RTL8169_PHY_Cap_100_Full equ 0x0100
; PHY_1000_CTRL_REG = 9;
RTL8169_PHY_Cap_1000_Full equ 0x0200
RTL8169_PHY_Cap_1000_Half equ 0x0100
RTL8169_PHY_Cap_PAUSE equ 0x0400
RTL8169_PHY_Cap_ASYM_PAUSE equ 0x0800
RTL8169_PHY_Cap_Null equ 0x0
; _MediaType
RTL8169_MT_10_Half equ 0x01
RTL8169_MT_10_Full equ 0x02
RTL8169_MT_100_Half equ 0x04
RTL8169_MT_100_Full equ 0x08
RTL8169_MT_1000_Full equ 0x10
; _TBICSRBit
RTL8169_TBI_LinkOK equ 0x02000000
; _DescStatusBit
RTL8169_DSB_OWNbit equ 0x80000000
RTL8169_DSB_EORbit equ 0x40000000
RTL8169_DSB_FSbit equ 0x20000000
RTL8169_DSB_LSbit equ 0x10000000
; MAC address length
MAC_ADDR_LEN equ 6
; max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4)
MAX_ETH_FRAME_SIZE equ 1536
TX_FIFO_THRESH equ 256 ; In bytes
RX_FIFO_THRESH equ 7 ; 7 means NO threshold, Rx buffer level before first PCI xfer
RX_DMA_BURST equ 7 ; Maximum PCI burst, '6' is 1024
TX_DMA_BURST equ 7 ; Maximum PCI burst, '6' is 1024
ETTh equ 0x3F ; 0x3F means NO threshold
EarlyTxThld equ 0x3F ; 0x3F means NO early transmit
RxPacketMaxSize equ 0x0800 ; Maximum size supported is 16K-1
InterFrameGap equ 0x03 ; 3 means InterFrameGap = the shortest one
NUM_TX_DESC equ 1 ; Number of Tx descriptor registers
NUM_RX_DESC equ 4 ; Number of Rx descriptor registers
RX_BUF_SIZE equ 1536 ; Rx Buffer size
HZ equ 1000
RTL_MIN_IO_SIZE equ 0x80
TX_TIMEOUT equ (6*HZ)
RTL8169_TIMER_EXPIRE_TIME equ 100
ETH_HDR_LEN equ 14
DEFAULT_MTU equ 1500
DEFAULT_RX_BUF_LEN equ 1536
;#ifdef RTL8169_JUMBO_FRAME_SUPPORT
;#define MAX_JUMBO_FRAME_MTU ( 10000 )
;#define MAX_RX_SKBDATA_SIZE ( MAX_JUMBO_FRAME_MTU + ETH_HDR_LEN )
;#else
MAX_RX_SKBDATA_SIZE equ 1600
;#endif //end #ifdef RTL8169_JUMBO_FRAME_SUPPORT
;#ifdef RTL8169_USE_IO
;!!!#define RTL_W8(reg, val8) outb ((val8), ioaddr + (reg))
macro RTL_W8 reg,val8 {
if ~reg eq dx
mov dx, word[rtl8169_tpc.mmio_addr]
add dx, reg
end if
if ~val8 eq al
mov al, val8
end if
out dx, al
}
;!!!#define RTL_W16(reg, val16) outw ((val16), ioaddr + (reg))
macro RTL_W16 reg,val16 {
if ~reg eq dx
mov dx, word[rtl8169_tpc.mmio_addr]
add dx, reg
end if
if ~val16 eq ax
mov ax, val16
end if
out dx, ax
}
;!!!#define RTL_W32(reg, val32) outl ((val32), ioaddr + (reg))
macro RTL_W32 reg,val32 {
if ~reg eq dx
mov dx, word[rtl8169_tpc.mmio_addr]
add dx, reg
end if
if ~val32 eq eax
mov eax, val32
end if
out dx, eax
}
;!!!#define RTL_R8(reg) inb (ioaddr + (reg))
macro RTL_R8 reg {
if ~reg eq dx
mov dx, word[rtl8169_tpc.mmio_addr]
add dx, reg
end if
in al, dx
}
;!!!#define RTL_R16(reg) inw (ioaddr + (reg))
macro RTL_R16 reg {
if ~reg eq dx
mov dx, word[rtl8169_tpc.mmio_addr]
add dx, reg
end if
in ax, dx
}
;!!!#define RTL_R32(reg) ((unsigned long) inl (ioaddr + (reg)))
macro RTL_R32 reg {
if ~reg eq dx
mov dx, word[rtl8169_tpc.mmio_addr]
add dx, reg
end if
in eax, dx
}
;#else
; write/read MMIO register
;#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
;#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
;#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
;#define RTL_R8(reg) readb (ioaddr + (reg))
;#define RTL_R16(reg) readw (ioaddr + (reg))
;#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
;#endif
MCFG_METHOD_01 equ 0x01
MCFG_METHOD_02 equ 0x02
MCFG_METHOD_03 equ 0x03
MCFG_METHOD_04 equ 0x04
MCFG_METHOD_05 equ 0x05
MCFG_METHOD_11 equ 0x0b
MCFG_METHOD_12 equ 0x0c
MCFG_METHOD_13 equ 0x0d
MCFG_METHOD_14 equ 0x0e
MCFG_METHOD_15 equ 0x0f
PCFG_METHOD_1 equ 0x01 ; PHY Reg 0x03 bit0-3 == 0x0000
PCFG_METHOD_2 equ 0x02 ; PHY Reg 0x03 bit0-3 == 0x0001
PCFG_METHOD_3 equ 0x03 ; PHY Reg 0x03 bit0-3 == 0x0002
PCI_COMMAND_IO equ 0x1 ; Enable response in I/O space
PCI_COMMAND_MEM equ 0x2 ; Enable response in mem space
PCI_COMMAND_MASTER equ 0x4 ; Enable bus mastering
PCI_LATENCY_TIMER equ 0x0d ; 8 bits
PCI_COMMAND_SPECIAL equ 0x8 ; Enable response to special cycles
PCI_COMMAND_INVALIDATE equ 0x10 ; Use memory write and invalidate
PCI_COMMAND_VGA_PALETTE equ 0x20 ; Enable palette snooping
PCI_COMMAND_PARITY equ 0x40 ; Enable parity checking
PCI_COMMAND_WAIT equ 0x80 ; Enable address/data stepping
PCI_COMMAND_SERR equ 0x100 ; Enable SERR
PCI_COMMAND_FAST_BACK equ 0x200 ; Enable back-to-back writes
struc rtl8169_TxDesc {
.status dd ?
.vlan_tag dd ?
.buf_addr dd ?
.buf_Haddr dd ?
}
virtual at 0
rtl8169_TxDesc rtl8169_TxDesc
sizeof.rtl8169_TxDesc = $ - rtl8169_TxDesc
end virtual
struc rtl8169_RxDesc {
.status dd ?
.vlan_tag dd ?
.buf_addr dd ?
.buf_Haddr dd ?
}
virtual at 0
rtl8169_RxDesc rtl8169_RxDesc
sizeof.rtl8169_RxDesc = $ - rtl8169_RxDesc
end virtual
virtual at eth_data_start
; Define the TX Descriptor
align 256
rtl8169_tx_ring rb NUM_TX_DESC * sizeof.rtl8169_TxDesc
; Create a static buffer of size RX_BUF_SZ for each
; TX Descriptor. All descriptors point to a
; part of this buffer
align 256
rtl8169_txb rb NUM_TX_DESC * RX_BUF_SIZE
; Define the RX Descriptor
align 256
rtl8169_rx_ring rb NUM_RX_DESC * sizeof.rtl8169_RxDesc
; Create a static buffer of size RX_BUF_SZ for each
; RX Descriptor All descriptors point to a
; part of this buffer
align 256
rtl8169_rxb rb NUM_RX_DESC * RX_BUF_SIZE
rtl8169_tpc:
.mmio_addr dd ? ; memory map physical address
.chipset dd ?
.pcfg dd ?
.mcfg dd ?
.cur_rx dd ? ; Index into the Rx descriptor buffer of next Rx pkt
.cur_tx dd ? ; Index into the Tx descriptor buffer of next Rx pkt
.TxDescArrays dd ? ; Index of Tx Descriptor buffer
.RxDescArrays dd ? ; Index of Rx Descriptor buffer
.TxDescArray dd ? ; Index of 256-alignment Tx Descriptor buffer
.RxDescArray dd ? ; Index of 256-alignment Rx Descriptor buffer
.RxBufferRing rd NUM_RX_DESC ; Index of Rx Buffer array
.Tx_skbuff rd NUM_TX_DESC
end virtual
rtl8169_intr_mask = RTL8169_ISB_LinkChg or RTL8169_ISB_RxOverflow or RTL8169_ISB_RxFIFOOver or RTL8169_ISB_TxErr or RTL8169_ISB_TxOK or RTL8169_ISB_RxErr or RTL8169_ISB_RxOK
rtl8169_rx_config = (RX_FIFO_THRESH shl RTL8169_RXC_FIFOShift) or (RX_DMA_BURST shl RTL8169_RXC_DMAShift) or 0x0000000E
iglobal
;static struct {
; const char *name;
; u8 mcfg; /* depend on RTL8169 docs */
; u32 RxConfigMask; /* should clear the bits supported by this chip */
;}
rtl_chip_info dd \
MCFG_METHOD_01, 0xff7e1880, \ ; RTL8169
MCFG_METHOD_02, 0xff7e1880, \ ; RTL8169s/8110s
MCFG_METHOD_03, 0xff7e1880, \ ; RTL8169s/8110s
MCFG_METHOD_04, 0xff7e1880, \ ; RTL8169sb/8110sb
MCFG_METHOD_05, 0xff7e1880, \ ; RTL8169sc/8110sc
MCFG_METHOD_11, 0xff7e1880, \ ; RTL8168b/8111b // PCI-E
MCFG_METHOD_12, 0xff7e1880, \ ; RTL8168b/8111b // PCI-E
MCFG_METHOD_13, 0xff7e1880, \ ; RTL8101e // PCI-E 8139
MCFG_METHOD_14, 0xff7e1880, \ ; RTL8100e // PCI-E 8139
MCFG_METHOD_15, 0xff7e1880 ; RTL8100e // PCI-E 8139
mac_info dd \
0x38800000, MCFG_METHOD_15, \
0x38000000, MCFG_METHOD_12, \
0x34000000, MCFG_METHOD_13, \
0x30800000, MCFG_METHOD_14, \
0x30000000, MCFG_METHOD_11, \
0x18000000, MCFG_METHOD_05, \
0x10000000, MCFG_METHOD_04, \
0x04000000, MCFG_METHOD_03, \
0x00800000, MCFG_METHOD_02, \
0x00000000, MCFG_METHOD_01 ; catch-all
endg
PCI_COMMAND_IO equ 0x1 ; Enable response in I/O space
PCI_COMMAND_MEM equ 0x2 ; Enable response in mem space
PCI_COMMAND_MASTER equ 0x4 ; Enable bus mastering
PCI_LATENCY_TIMER equ 0x0d ; 8 bits
PCI_COMMAND_SPECIAL equ 0x8 ; Enable response to special cycles
PCI_COMMAND_INVALIDATE equ 0x10 ; Use memory write and invalidate
PCI_COMMAND_VGA_PALETTE equ 0x20 ; Enable palette snooping
PCI_COMMAND_PARITY equ 0x40 ; Enable parity checking
PCI_COMMAND_WAIT equ 0x80 ; Enable address/data stepping
PCI_COMMAND_SERR equ 0x100 ; Enable SERR
PCI_COMMAND_FAST_BACK equ 0x200 ; Enable back-to-back writes
PCI_VENDOR_ID equ 0x00 ; 16 bits
PCI_DEVICE_ID equ 0x02 ; 16 bits
PCI_COMMAND equ 0x04 ; 16 bits
PCI_BASE_ADDRESS_0 equ 0x10 ; 32 bits
PCI_BASE_ADDRESS_1 equ 0x14 ; 32 bits
PCI_BASE_ADDRESS_2 equ 0x18 ; 32 bits
PCI_BASE_ADDRESS_3 equ 0x1c ; 32 bits
PCI_BASE_ADDRESS_4 equ 0x20 ; 32 bits
PCI_BASE_ADDRESS_5 equ 0x24 ; 32 bits
PCI_BASE_ADDRESS_MEM_TYPE_MASK equ 0x06
PCI_BASE_ADDRESS_MEM_TYPE_32 equ 0x00 ; 32 bit address
PCI_BASE_ADDRESS_MEM_TYPE_1M equ 0x02 ; Below 1M [obsolete]
PCI_BASE_ADDRESS_MEM_TYPE_64 equ 0x04 ; 64 bit address
PCI_BASE_ADDRESS_IO_MASK equ (not 0x03)
PCI_BASE_ADDRESS_MEM_MASK equ (not 0x0f)
PCI_BASE_ADDRESS_SPACE_IO equ 0x01
PCI_ROM_ADDRESS equ 0x30 ; 32 bits
proc CONFIG_CMD,where:byte
movzx eax, byte[pci_bus]
shl eax, 8
mov al, [pci_dev]
shl eax, 8
mov al, [where]
and al, not 3
or eax, 0x80000000
ret
endp
proc pci_read_config_byte,where:dword
push edx
stdcall CONFIG_CMD, [where]
mov dx, 0xCF8
out dx, eax
mov edx, [where]
and edx, 3
add edx, 0xCFC
in al, dx
pop edx
ret
endp
proc pci_read_config_word,where:dword
push edx
stdcall CONFIG_CMD, [where]
mov dx, 0xCF8
out dx, eax
mov edx, [where]
and edx, 2
add edx, 0xCFC
in ax, dx
pop edx
ret
endp
proc pci_read_config_dword,where:dword
push edx
stdcall CONFIG_CMD, [where]
mov edx, 0xCF8
out dx, eax
mov edx, 0xCFC
in eax, dx
pop edx
ret
endp
proc pci_write_config_byte,where:dword,value:byte
push edx
stdcall CONFIG_CMD, [where]
mov dx, 0xCF8
out dx, eax
mov edx, [where]
and edx, 3
add edx, 0xCFC
mov al, [value]
out dx, al
pop edx
ret
endp
proc pci_write_config_word,where:dword,value:word
push edx
stdcall CONFIG_CMD, [where]
mov dx, 0xCF8
out dx, eax
mov edx, [where]
and edx, 2
add edx, 0xCFC
mov ax, [value]
out dx, ax
pop edx
ret
endp
proc pci_write_config_dword,where:dword,value:dword
push edx
stdcall CONFIG_CMD, [where]
mov edx, 0xCF8
out dx, eax
mov edx, 0xCFC
mov eax, [value]
out dx, eax
pop edx
ret
endp
; Set device to be a busmaster in case BIOS neglected to do so.
; Also adjust PCI latency timer to a reasonable value, 32.
proc adjust_pci_device
; DEBUGF 1,"K : adjust_pci_device\n"
stdcall pci_read_config_word, PCI_COMMAND
mov bx, ax
or bx, PCI_COMMAND_MASTER or PCI_COMMAND_IO
cmp ax, bx
je @f
; DEBUGF 1,"K : adjust_pci_device: The PCI BIOS has not enabled this device!\nK : Updating PCI command %x->%x. pci_bus %x pci_device_fn %x\n",ax,bx,[pci_bus]:2,[pci_dev]:2
stdcall pci_write_config_word, PCI_COMMAND, ebx
@@:
stdcall pci_read_config_byte, PCI_LATENCY_TIMER
cmp al, 32
jae @f
; DEBUGF 1,"K : adjust_pci_device: PCI latency timer (CFLT) is unreasonably low at %d.\nK : Setting to 32 clocks.\n",al
stdcall pci_write_config_byte, PCI_LATENCY_TIMER, 32
@@:
ret
endp
; Find the start of a pci resource
proc pci_bar_start,index:dword
stdcall pci_read_config_dword, [index]
test eax, PCI_BASE_ADDRESS_SPACE_IO
jz @f
and eax, PCI_BASE_ADDRESS_IO_MASK
jmp .exit
@@:
push eax
and eax, PCI_BASE_ADDRESS_MEM_TYPE_MASK
cmp eax, PCI_BASE_ADDRESS_MEM_TYPE_64
jne .not64
mov eax, [index]
add eax, 4
stdcall pci_read_config_dword, eax
or eax, eax
jz .not64
; DEBUGF 1,"K : pci_bar_start: Unhandled 64bit BAR\n"
add esp, 4
or eax, -1
ret
.not64:
pop eax
and eax, PCI_BASE_ADDRESS_MEM_MASK
.exit:
ret
endp
proc rtl8169_init_board
; DEBUGF 1,"K : rtl8169_init_board\n"
call adjust_pci_device
stdcall pci_bar_start, PCI_BASE_ADDRESS_0
mov [rtl8169_tpc.mmio_addr], eax
; Soft reset the chip
RTL_W8 RTL8169_REG_ChipCmd,RTL8169_CMD_Reset
; Check that the chip has finished the reset
mov ecx, 1000
@@:
RTL_R8 RTL8169_REG_ChipCmd
test al, RTL8169_CMD_Reset
jz @f
stdcall udelay, 10
loop @b
@@:
; identify config method
RTL_R32 RTL8169_REG_TxConfig
and eax, 0x7c800000
; DEBUGF 1,"K : rtl8169_init_board: TxConfig & 0x7c800000 = 0x%x\n",eax
mov esi, mac_info-8
@@:
add esi, 8
mov ecx, eax
and ecx, [esi]
cmp ecx, [esi]
jne @b
mov eax, [esi+4]
mov [rtl8169_tpc.mcfg], eax
mov [rtl8169_tpc.pcfg], PCFG_METHOD_3
stdcall RTL8169_READ_GMII_REG, 3
and al, 0x0f
or al, al
jnz @f
mov [rtl8169_tpc.pcfg], PCFG_METHOD_1
jmp .pconf
@@:
dec al
jnz .pconf
mov [rtl8169_tpc.pcfg], PCFG_METHOD_2
.pconf:
; identify chip attached to board
mov ecx, 10
mov eax, [rtl8169_tpc.mcfg]
@@:
dec ecx
js @f
cmp eax, [rtl_chip_info+ecx*8]
jne @b
mov [rtl8169_tpc.chipset], ecx
jmp .match
@@:
; if unknown chip, assume array element #0, original RTL-8169 in this case
; DEBUGF 1,"K : rtl8169_init_board: PCI device: unknown chip version, assuming RTL-8169\n"
RTL_R32 RTL8169_REG_TxConfig
; DEBUGF 1,"K : rtl8169_init_board: PCI device: TxConfig = 0x%x\n",eax
mov [rtl8169_tpc.chipset], 0
xor eax, eax
inc eax
ret
.match:
xor eax, eax
ret
endp
proc rtl8169_hw_PHY_config
; DEBUGF 1,"K : rtl8169_hw_PHY_config: priv.mcfg=%d, priv.pcfg=%d\n",[rtl8169_tpc.mcfg],[rtl8169_tpc.pcfg]
; DBG_PRINT("priv->mcfg=%d, priv->pcfg=%d\n", tpc->mcfg, tpc->pcfg);
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_04
jne .not_4
; stdcall RTL8169_WRITE_GMII_REG,0x1F,0x0001
; stdcall RTL8169_WRITE_GMII_REG,0x1b,0x841e
; stdcall RTL8169_WRITE_GMII_REG,0x0e,0x7bfb
; stdcall RTL8169_WRITE_GMII_REG,0x09,0x273a
stdcall RTL8169_WRITE_GMII_REG, 0x1F, 0x0002
stdcall RTL8169_WRITE_GMII_REG, 0x01, 0x90D0
stdcall RTL8169_WRITE_GMII_REG, 0x1F, 0x0000
jmp .exit
.not_4:
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_02
je @f
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_03
jne .not_2_or_3
@@:
stdcall RTL8169_WRITE_GMII_REG, 0x1F, 0x0001
stdcall RTL8169_WRITE_GMII_REG, 0x15, 0x1000
stdcall RTL8169_WRITE_GMII_REG, 0x18, 0x65C7
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x0000
stdcall RTL8169_WRITE_GMII_REG, 0x03, 0x00A1
stdcall RTL8169_WRITE_GMII_REG, 0x02, 0x0008
stdcall RTL8169_WRITE_GMII_REG, 0x01, 0x1020
stdcall RTL8169_WRITE_GMII_REG, 0x00, 0x1000
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x0800
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x0000
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x7000
stdcall RTL8169_WRITE_GMII_REG, 0x03, 0xFF41
stdcall RTL8169_WRITE_GMII_REG, 0x02, 0xDE60
stdcall RTL8169_WRITE_GMII_REG, 0x01, 0x0140
stdcall RTL8169_WRITE_GMII_REG, 0x00, 0x0077
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x7800
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x7000
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xA000
stdcall RTL8169_WRITE_GMII_REG, 0x03, 0xDF01
stdcall RTL8169_WRITE_GMII_REG, 0x02, 0xDF20
stdcall RTL8169_WRITE_GMII_REG, 0x01, 0xFF95
stdcall RTL8169_WRITE_GMII_REG, 0x00, 0xFA00
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xA800
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xA000
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xB000
stdcall RTL8169_WRITE_GMII_REG, 0x03, 0xFF41
stdcall RTL8169_WRITE_GMII_REG, 0x02, 0xDE20
stdcall RTL8169_WRITE_GMII_REG, 0x01, 0x0140
stdcall RTL8169_WRITE_GMII_REG, 0x00, 0x00BB
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xB800
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xB000
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xF000
stdcall RTL8169_WRITE_GMII_REG, 0x03, 0xDF01
stdcall RTL8169_WRITE_GMII_REG, 0x02, 0xDF20
stdcall RTL8169_WRITE_GMII_REG, 0x01, 0xFF95
stdcall RTL8169_WRITE_GMII_REG, 0x00, 0xBF00
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xF800
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0xF000
stdcall RTL8169_WRITE_GMII_REG, 0x04, 0x0000
stdcall RTL8169_WRITE_GMII_REG, 0x1F, 0x0000
stdcall RTL8169_WRITE_GMII_REG, 0x0B, 0x0000
jmp .exit
.not_2_or_3:
; DBG_PRINT("tpc->mcfg=%d. Discard hw PHY config.\n", tpc->mcfg);
; DEBUGF 1,"K : tpc.mcfg=%d, discard hw PHY config\n",[rtl8169_tpc.mcfg]
.exit:
ret
endp
;proc pci_write_config_byte
; ret
;endp
proc RTL8169_WRITE_GMII_REG,RegAddr:byte,value:dword
;;; DEBUGF 1,"K : RTL8169_WRITE_GMII_REG: 0x%x 0x%x\n",[RegAddr]:2,[value]
movzx eax, [RegAddr]
shl eax, 16
or eax, [value]
or eax, 0x80000000
RTL_W32 RTL8169_REG_PHYAR,eax
stdcall udelay, 1 ;;;1000
mov ecx, 2000
; Check if the RTL8169 has completed writing to the specified MII register
@@:
RTL_R32 RTL8169_REG_PHYAR
test eax, 0x80000000
jz .exit
stdcall udelay, 1 ;;;100
loop @b
.exit:
ret
endp
proc RTL8169_READ_GMII_REG,RegAddr:byte
;;; DEBUGF 1,"K : RTL8169_READ_GMII_REG: 0x%x\n",[RegAddr]:2
push ecx
movzx eax, [RegAddr]
shl eax, 16
; or eax,0x0
RTL_W32 RTL8169_REG_PHYAR,eax
stdcall udelay, 1 ;;;1000
mov ecx, 2000
; Check if the RTL8169 has completed retrieving data from the specified MII register
@@:
RTL_R32 RTL8169_REG_PHYAR
test eax, 0x80000000
jnz .exit
stdcall udelay, 1 ;;;100
loop @b
or eax, -1
pop ecx
ret
.exit:
RTL_R32 RTL8169_REG_PHYAR
and eax, 0xFFFF
pop ecx
ret
endp
proc rtl8169_set_rx_mode
; DEBUGF 1,"K : rtl8169_set_rx_mode\n"
; IFF_ALLMULTI
; Too many to filter perfectly -- accept all multicasts
RTL_R32 RTL8169_REG_RxConfig
mov ecx, [rtl8169_tpc.chipset]
and eax, [rtl_chip_info + ecx * 8 + 4]; RxConfigMask
or eax, rtl8169_rx_config or (RTL8169_RXM_AcceptBroadcast or RTL8169_RXM_AcceptMulticast or RTL8169_RXM_AcceptMyPhys)
RTL_W32 RTL8169_REG_RxConfig,eax
; Multicast hash filter
RTL_W32 RTL8169_REG_MAR0 + 0,0xffffffff
RTL_W32 RTL8169_REG_MAR0 + 4,0xffffffff
ret
endp
proc rtl8169_init_ring
; DEBUGF 1,"K : rtl8169_init_ring\n"
xor eax, eax
mov [rtl8169_tpc.cur_rx], eax
mov [rtl8169_tpc.cur_tx], eax
mov edi, [rtl8169_tpc.TxDescArray]
mov ecx, (NUM_TX_DESC * sizeof.rtl8169_TxDesc) / 4
cld
rep stosd
mov edi, [rtl8169_tpc.RxDescArray]
mov ecx, (NUM_RX_DESC * sizeof.rtl8169_RxDesc) / 4
rep stosd
mov edi, rtl8169_tpc.Tx_skbuff
mov eax, rtl8169_txb
mov ecx, NUM_TX_DESC
@@:
stosd
inc eax ; add eax,RX_BUF_SIZE ???
loop @b
;!!! for (i = 0; i < NUM_RX_DESC; i++) {
;!!! if (i == (NUM_RX_DESC - 1))
;!!! tpc->RxDescArray[i].status = (OWNbit | EORbit) | RX_BUF_SIZE;
;!!! else
;!!! tpc->RxDescArray[i].status = OWNbit | RX_BUF_SIZE;
;!!! tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE];
;!!! tpc->RxDescArray[i].buf_addr = virt_to_bus(tpc->RxBufferRing[i]);
;!!! }
mov esi, rtl8169_tpc.RxBufferRing
mov edi, [rtl8169_tpc.RxDescArray]
mov eax, rtl8169_rxb
mov ecx, NUM_RX_DESC
@@:
mov [esi], eax
mov [edi+rtl8169_RxDesc.buf_addr], eax
sub [edi+rtl8169_RxDesc.buf_addr], OS_BASE ; shurf 28.09.2008
mov [edi+rtl8169_RxDesc.status], RTL8169_DSB_OWNbit or RX_BUF_SIZE
add esi, 4
add edi, sizeof.rtl8169_RxDesc
add eax, RX_BUF_SIZE
loop @b
or [edi - sizeof.rtl8169_RxDesc + rtl8169_RxDesc.status], RTL8169_DSB_EORbit
ret
endp
proc rtl8169_hw_start
; DEBUGF 1,"K : rtl8169_hw_start\n"
; Soft reset the chip
RTL_W8 RTL8169_REG_ChipCmd,RTL8169_CMD_Reset
; Check that the chip has finished the reset
mov ecx, 1000
@@:
RTL_R8 RTL8169_REG_ChipCmd
and al, RTL8169_CMD_Reset
jz @f
stdcall udelay, 10
loop @b
@@:
RTL_W8 RTL8169_REG_Cfg9346,RTL8169_CFG_9346_Unlock
RTL_W8 RTL8169_REG_ChipCmd,RTL8169_CMD_TxEnb or RTL8169_CMD_RxEnb
RTL_W8 RTL8169_REG_ETThReg,ETTh
; For gigabit rtl8169
RTL_W16 RTL8169_REG_RxMaxSize,RxPacketMaxSize
; Set Rx Config register
RTL_R32 RTL8169_REG_RxConfig
mov ecx, [rtl8169_tpc.chipset]
and eax, [rtl_chip_info + ecx * 8 + 4]; RxConfigMask
or eax, rtl8169_rx_config
RTL_W32 RTL8169_REG_RxConfig,eax
; Set DMA burst size and Interframe Gap Time
RTL_W32 RTL8169_REG_TxConfig,(TX_DMA_BURST shl RTL8169_TXC_DMAShift) or (InterFrameGap shl RTL8169_TXC_InterFrameGapShift)
RTL_R16 RTL8169_REG_CPlusCmd
RTL_W16 RTL8169_REG_CPlusCmd,ax
RTL_R16 RTL8169_REG_CPlusCmd
or ax, 1 shl 3
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_02
jne @f
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_03
jne @f
or ax, 1 shl 14
; DEBUGF 1,"K : Set MAC Reg C+CR Offset 0xE0: bit-3 and bit-14\n"
jmp .set
@@:;DEBUGF 1,"K : Set MAC Reg C+CR Offset 0xE0: bit-3\n"
.set:
RTL_W16 RTL8169_REG_CPlusCmd,ax
; RTL_W16 0xE2,0x1517
; RTL_W16 0xE2,0x152a
; RTL_W16 0xE2,0x282a
RTL_W16 0xE2,0x0000
MOV [rtl8169_tpc.cur_rx],0
push eax ; shurf 28.09.2008
mov eax, [rtl8169_tpc.TxDescArray] ; shurf 28.09.2008
sub eax, OS_BASE ; shurf 28.09.2008
RTL_W32 RTL8169_REG_TxDescStartAddr,eax ;[rtl8169_tpc.TxDescArray] ; shurf 28.09.2008
mov eax, [rtl8169_tpc.RxDescArray] ; shurf 28.09.2008
sub eax, OS_BASE ; shurf 28.09.2008
RTL_W32 RTL8169_REG_RxDescStartAddr,eax ;[rtl8169_tpc.RxDescArray] ; shurf 28.09.2008
pop eax ; shurf 28.09.2008
RTL_W8 RTL8169_REG_Cfg9346,RTL8169_CFG_9346_Lock
stdcall udelay, 10
RTL_W32 RTL8169_REG_RxMissed,0
call rtl8169_set_rx_mode
; no early-rx interrupts
RTL_R16 RTL8169_REG_MultiIntr
and ax, 0xF000
RTL_W16 RTL8169_REG_MultiIntr,ax
RTL_W16 RTL8169_REG_IntrMask,0 ; rtl8169_intr_mask
ret
endp
proc udelay,msec:dword
push esi
mov esi, [msec]
call delay_ms
pop esi
ret
endp
;***************************************************************************
; Function
; rtl8169_probe
; Description
; Searches for an ethernet card, enables it and clears the rx buffer
; If a card was found, it enables the ethernet -> TCPIP link
; Destroyed registers
; eax, ebx, ecx, edx
;
;***************************************************************************
proc rtl8169_probe
; DEBUGF 1,"K : rtl8169_probe: 0x%x : 0x%x 0x%x\n",[io_addr]:8,[pci_bus]:2,[pci_dev]:2
call rtl8169_init_board
mov ecx, MAC_ADDR_LEN
mov edx, [rtl8169_tpc.mmio_addr]
add edx, RTL8169_REG_MAC0
xor ebx, ebx
; Get MAC address. FIXME: read EEPROM
@@:
RTL_R8 dx
mov [node_addr+ebx], al
inc edx
inc ebx
loop @b
; DEBUGF 1,"K : rtl8169_probe: MAC = %x-%x-%x-%x-%x-%x\n",[node_addr+0]:2,[node_addr+1]:2,[node_addr+2]:2,[node_addr+3]:2,[node_addr+4]:2,[node_addr+5]:2
; Config PHY
stdcall rtl8169_hw_PHY_config
; DEBUGF 1,"K : Set MAC Reg C+CR Offset 0x82h = 0x01h\n"
RTL_W8 0x82,0x01
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_03
jae @f
; DEBUGF 1,"K : Set PCI Latency=0x40\n"
; stdcall pci_write_config_byte,PCI_LATENCY_TIMER,0x40
@@:
cmp [rtl8169_tpc.mcfg], MCFG_METHOD_02
jne @f
; DEBUGF 1,"K : Set MAC Reg C+CR Offset 0x82h = 0x01h\n"
RTL_W8 0x82,0x01
; DEBUGF 1,"K : Set PHY Reg 0x0bh = 0x00h\n"
stdcall RTL8169_WRITE_GMII_REG, 0x0b, 0x0000 ; w 0x0b 15 0 0
@@:
; if TBI is not enabled
RTL_R8 RTL8169_REG_PHYstatus
test al, RTL8169_PHYS_TBI_Enable
jz .tbi_dis
stdcall RTL8169_READ_GMII_REG, RTL8169_PHY_AUTO_NEGO_REG
; enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged
and eax, 0x0C1F
or eax, RTL8169_PHY_Cap_10_Half or RTL8169_PHY_Cap_10_Full or RTL8169_PHY_Cap_100_Half or RTL8169_PHY_Cap_100_Full
stdcall RTL8169_WRITE_GMII_REG, RTL8169_PHY_AUTO_NEGO_REG, eax
; enable 1000 Full Mode
stdcall RTL8169_WRITE_GMII_REG, RTL8169_PHY_1000_CTRL_REG, RTL8169_PHY_Cap_1000_Full or RTL8169_PHY_Cap_1000_Half; rtl8168
; Enable auto-negotiation and restart auto-nigotiation
stdcall RTL8169_WRITE_GMII_REG, RTL8169_PHY_CTRL_REG, RTL8169_PHY_Enable_Auto_Nego or RTL8169_PHY_Restart_Auto_Nego
stdcall udelay, 100
mov ecx, 10000
; wait for auto-negotiation process
@@:
dec ecx
jz @f
stdcall RTL8169_READ_GMII_REG, RTL8169_PHY_STAT_REG
stdcall udelay, 100
test eax, RTL8169_PHY_Auto_Neco_Comp
jz @b
RTL_R8 RTL8169_REG_PHYstatus
jmp @f
.tbi_dis:
stdcall udelay, 100
@@:
call rtl8169_reset
ret
endp
;***************************************************************************
; Function
; rt8169_reset
; Description
; Place the chip (ie, the ethernet card) into a virgin state
; Destroyed registers
; eax, ebx, ecx, edx
;
;***************************************************************************
proc rtl8169_reset
; DEBUGF 1,"K : rtl8169_reset: 0x%x : 0x%x 0x%x\n",[io_addr]:8,[pci_bus]:2,[pci_dev]:2
mov [rtl8169_tpc.TxDescArrays], rtl8169_tx_ring
; Tx Desscriptor needs 256 bytes alignment
mov [rtl8169_tpc.TxDescArray], rtl8169_tx_ring
mov [rtl8169_tpc.RxDescArrays], rtl8169_rx_ring
; Rx Desscriptor needs 256 bytes alignment
mov [rtl8169_tpc.RxDescArray], rtl8169_rx_ring
call rtl8169_init_ring
call rtl8169_hw_start
; Construct a perfect filter frame with the mac address as first match
; and broadcast for all others
mov edi, rtl8169_txb
or al, -1
mov ecx, 192
cld
rep stosb
mov esi, node_addr
mov edi, rtl8169_txb
movsd
movsw
mov eax, [pci_data]
mov [eth_status], eax
ret
endp
;***************************************************************************
; Function
; rtl8169_transmit
; Description
; Transmits a packet of data via the ethernet card
; d - edi - Pointer to 48 bit destination address
; t - bx - Type of packet
; s - ecx - size of packet
; p - esi - pointer to packet data
; Destroyed registers
; eax, edx, esi, edi
;
;***************************************************************************
proc rtl8169_transmit
; DEBUGF 1,"K : rtl8169_transmit\n" ;: 0x%x : 0x%x 0x%x 0x%x 0x%x\n",[io_addr]:8,edi,bx,ecx,esi
push ecx edx esi
mov eax, MAX_ETH_FRAME_SIZE
mul [rtl8169_tpc.cur_tx]
mov esi, edi
; point to the current txb incase multiple tx_rings are used
mov edi, [rtl8169_tpc.Tx_skbuff + eax * 4]
mov eax, edi
cld
; copy destination address
movsd
movsw
; copy source address
mov esi, node_addr
movsd
movsw
; copy packet type
mov [edi], bx
add edi, 2
; copy the packet data
pop esi edx ecx
push ecx
shr ecx, 2
rep movsd
pop ecx
push ecx
and ecx, 3
rep movsb
;!!! s += ETH_HLEN;
;!!! s &= 0x0FFF;
;!!! while (s < ETH_ZLEN)
;!!! ptxb[s++] = '\0';
mov edi, eax
pop ecx
push eax
add ecx, ETH_HLEN
and ecx, 0x0FFF
xor al, al
add edi, ecx
@@:
cmp ecx, ETH_ZLEN
jae @f
stosb
inc ecx
jmp @b
@@:
pop eax
mov ebx, eax
mov eax, sizeof.rtl8169_TxDesc
mul [rtl8169_tpc.cur_tx]
add eax, [rtl8169_tpc.TxDescArray]
xchg eax, ebx
mov [ebx + rtl8169_TxDesc.buf_addr], eax
sub [ebx + rtl8169_TxDesc.buf_addr], OS_BASE ; shurf 28.09.2008
mov eax, ecx
cmp eax, ETH_ZLEN
jae @f
mov eax, ETH_ZLEN
@@:
or eax, RTL8169_DSB_OWNbit or RTL8169_DSB_FSbit or RTL8169_DSB_LSbit
cmp [rtl8169_tpc.cur_tx], NUM_TX_DESC - 1
jne @f
or eax, RTL8169_DSB_EORbit
@@:
mov [ebx + rtl8169_TxDesc.status], eax
RTL_W8 RTL8169_REG_TxPoll,0x40 ; set polling bit
inc [rtl8169_tpc.cur_tx]
and [rtl8169_tpc.cur_tx], NUM_TX_DESC - 1
;!!! to = currticks() + TX_TIMEOUT;
;!!! while ((tpc->TxDescArray[entry].status & OWNbit) && (currticks() < to)); /* wait */
mov ecx, TX_TIMEOUT / 10
@@:
test [ebx + rtl8169_TxDesc.status], RTL8169_DSB_OWNbit
jnz @f
stdcall udelay, 10
loop @b
; DEBUGF 1,"K : rtl8169_transmit: TX Time Out\n"
@@:
ret
endp
;***************************************************************************
; Function
; rtl8169_poll
;
; Description
; Polls the ethernet card for a received packet
; Received data, if any, ends up in Ether_buffer
; Destroyed register(s)
; eax, edx, ecx
;
;***************************************************************************
proc rtl8169_poll
; DEBUGF 1,"K : rtl8169_poll\n" ;: 0x%x : none\n",[io_addr]:8
mov word[eth_rx_data_len], 0
mov eax, sizeof.rtl8169_RxDesc
mul [rtl8169_tpc.cur_rx]
add eax, [rtl8169_tpc.RxDescArray]
mov ebx, eax
; DEBUGF 1,"K : rtl8169_RxDesc.status = 0x%x\n",[ebx + rtl8169_RxDesc.status]
test [ebx + rtl8169_RxDesc.status], RTL8169_DSB_OWNbit; 0x80000600
jnz .exit
; DEBUGF 1,"K : rtl8169_tpc.cur_rx = %u\n",[rtl8169_tpc.cur_rx]
; h/w no longer present (hotplug?) or major error, bail
RTL_R16 RTL8169_REG_IntrStatus
; DEBUGF 1,"K : IntrStatus = 0x%x\n",ax
cmp ax, 0xFFFF
je .exit
push eax
and ax, not (RTL8169_ISB_RxFIFOOver or RTL8169_ISB_RxOverflow or RTL8169_ISB_RxOK)
RTL_W16 RTL8169_REG_IntrStatus,ax
mov eax, [ebx + rtl8169_RxDesc.status]
; DEBUGF 1,"K : RxDesc.status = 0x%x\n",eax
test eax, RTL8169_SD_RxRES
jnz .else
and eax, 0x00001FFF
; jz .exit.pop
add eax, -4
mov [eth_rx_data_len], ax
; DEBUGF 1,"K : rtl8169_poll: data length = %u\n",ax
push eax
mov ecx, eax
shr ecx, 2
mov eax, [rtl8169_tpc.cur_rx]
mov edx, [rtl8169_tpc.RxBufferRing + eax * 4]
mov esi, edx
mov edi, Ether_buffer
cld
rep movsd
pop ecx
and ecx, 3
rep movsb
mov eax, RTL8169_DSB_OWNbit or RX_BUF_SIZE
cmp [rtl8169_tpc.cur_rx], NUM_RX_DESC - 1
jne @f
or eax, RTL8169_DSB_EORbit
@@:
mov [ebx + rtl8169_RxDesc.status], eax
mov [ebx + rtl8169_RxDesc.buf_addr], edx
sub [ebx + rtl8169_RxDesc.buf_addr], OS_BASE ; shurf 28.09.2008
jmp @f
.else:
; DEBUGF 1,"K : rtl8169_poll: Rx Error\n"
; FIXME: shouldn't I reset the status on an error
@@:
inc [rtl8169_tpc.cur_rx]
and [rtl8169_tpc.cur_rx], NUM_RX_DESC - 1
.exit.pop:
pop eax
and ax, RTL8169_ISB_RxFIFOOver or RTL8169_ISB_RxOverflow or RTL8169_ISB_RxOK
RTL_W16 RTL8169_REG_IntrStatus,ax
.exit:
ret
endp
proc rtl8169_cable
ret
endp
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