0,0 → 1,1138 |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;; |
;; Distributed under terms of the GNU General Public License ;; |
;; ;; |
;; I8255x (Intel eepro 100) driver for KolibriOS ;; |
;; ;; |
;; Written by hidnplayr@kolibrios.org ;; |
;; ;; |
;; v0.0 - march 2009 ;; |
;; ;; |
;; GNU GENERAL PUBLIC LICENSE ;; |
;; Version 2, June 1991 ;; |
;; ;; |
;; current status (september 2009) - INCOMPLETE ;; |
;; ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
format MS COFF |
|
API_VERSION equ 0x01000100 |
|
DEBUG equ 1 |
__DEBUG__ equ 1 |
__DEBUG_LEVEL__ equ 1 |
|
include 'proc32.inc' |
include 'imports.inc' |
include 'fdo.inc' |
|
OS_BASE equ 0; |
new_app_base equ 0x60400000 |
PROC_BASE equ OS_BASE+0x0080000 |
|
public START |
public service_proc |
public version |
|
struc IOCTL { |
.handle dd ? |
.io_code dd ? |
.input dd ? |
.inp_size dd ? |
.output dd ? |
.out_size dd ? |
} |
|
virtual at 0 |
IOCTL IOCTL |
end virtual |
|
struc ETH_DEVICE { |
; pointers to procedures |
.unload dd ? |
.reset dd ? |
.transmit dd ? |
.set_MAC dd ? |
.get_MAC dd ? |
.set_mode dd ? |
.get_mode dd ? |
; status |
.bytes_tx dd ? |
.bytes_rx dd ? |
.packets_tx dd ? |
.packets_rx dd ? |
.mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..) |
.name dd ? |
; device specific |
.io_addr dd ? |
.pci_bus db ? |
.pci_dev db ? |
.irq_line db ? |
.status dw ? ; |
.command dw ? ; |
.link dd ? ; |
.rx_buf_addr dd ? ; |
.count dw ? ; |
.size dw ? ; |
.packet dd ? ; |
.eeprom_data rd 16 |
|
.txfd: |
.txfd_status dw ? |
.txfd_command dw ? |
.txfd_link dd ? |
.txfd_tx_desc_addr dd ? |
.txfd_count dd ? |
.txfd_tx_buf_addr0 dd ? |
.txfd_tx_buf_size0 dd ? |
.txfd_tx_buf_addr1 dd ? |
.txfd_tx_buf_size1 dd ? |
|
.size_: |
|
} |
|
virtual at 0 |
device ETH_DEVICE |
end virtual |
|
|
lstats: |
tx_good_frames: dd 0 |
tx_coll16_errs: dd 0 |
tx_late_colls: dd 0 |
tx_underruns: dd 0 |
tx_lost_carrier: dd 0 |
tx_deferred: dd 0 |
tx_one_colls: dd 0 |
tx_multi_colls: dd 0 |
tx_total_colls: dd 0 |
|
rx_good_frames: dd 0 |
rx_crc_errs: dd 0 |
rx_align_errs: dd 0 |
rx_resource_errs: dd 0 |
rx_overrun_errs: dd 0 |
rx_colls_errs: dd 0 |
rx_runt_errs: dd 0 |
|
done_marker: dd 0 |
|
|
confcmd: |
.status: dw 0 |
.command: dw 0 |
.link: dd 0 |
|
confcmd_data: db 22, 0x08, 0, 0, 0, 0x80, 0x32, 0x03, 1 |
db 0, 0x2e, 0, 0x60, 0, 0xf2, 0x48, 0, 0x40, 0xf2 |
db 0x80, 0x3f, 0x05 |
|
|
MAX_I8255x equ 16 ; Max number of devices this driver may handle |
|
|
; PCI Bus defines |
|
PCI_HEADER_TYPE equ 0x0e ;8 bit |
PCI_BASE_ADDRESS_0 equ 0x10 ;32 bit |
PCI_BASE_ADDRESS_5 equ 0x24 ;32 bits |
PCI_BASE_ADDRESS_SPACE_IO equ 0x01 |
PCI_VENDOR_ID equ 0x00 ;16 bit |
PCI_BASE_ADDRESS_IO_MASK equ 0xFFFFFFFC |
|
|
|
;/***********************************************************************/ |
;/* I82557 related defines */ |
;/***********************************************************************/ |
|
; Serial EEPROM section. |
; A "bit" grungy, but we work our way through bit-by-bit :->. |
; EEPROM_Ctrl bits. |
EE_SHIFT_CLK equ 0x01 ; EEPROM shift clock. |
EE_CS equ 0x02 ; EEPROM chip select. |
EE_DATA_WRITE equ 0x04 ; EEPROM chip data in. |
EE_DATA_READ equ 0x08 ; EEPROM chip data out. |
EE_WRITE_0 equ 0x4802 |
EE_WRITE_1 equ 0x4806 |
EE_ENB equ 0x4802 |
|
|
; The EEPROM commands include the alway-set leading bit. |
EE_READ_CMD equ 6 |
|
; The SCB accepts the following controls for the Tx and Rx units: |
CU_START equ 0x0010 |
CU_RESUME equ 0x0020 |
CU_STATSADDR equ 0x0040 |
CU_SHOWSTATS equ 0x0050 ; Dump statistics counters. |
CU_CMD_BASE equ 0x0060 ; Base address to add to add CU commands. |
CU_DUMPSTATS equ 0x0070 ; Dump then reset stats counters. |
|
RX_START equ 0x0001 |
RX_RESUME equ 0x0002 |
RX_ABORT equ 0x0004 |
RX_ADDR_LOAD equ 0x0006 |
RX_RESUMENR equ 0x0007 |
INT_MASK equ 0x0100 |
DRVR_INT equ 0x0200 ; Driver generated interrupt. |
|
|
|
|
|
|
section '.flat' code readable align 16 |
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; proc START ;; |
;; ;; |
;; (standard driver proc) ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
proc START stdcall, state:dword |
|
cmp [state], 1 |
jne .exit |
|
.entry: |
|
DEBUGF 1,"Loading I8255x driver\n" |
stdcall RegService, my_service, service_proc |
ret |
|
.fail: |
.exit: |
xor eax, eax |
ret |
|
endp |
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; proc SERVICE_PROC ;; |
;; ;; |
;; (standard driver proc) ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
align 4 |
proc service_proc stdcall, ioctl:dword |
|
mov edx, [ioctl] |
mov eax, [ebx+IOCTL.io_code] |
|
;------------------------------------------------------ |
|
cmp eax, 0 ;SRV_GETVERSION |
jne @F |
|
cmp [edx+IOCTL.out_size], 4 |
jl .fail |
mov eax, [edx+IOCTL.output] |
mov [eax], dword API_VERSION |
|
xor eax, eax |
ret |
|
;------------------------------------------------------ |
@@: |
cmp eax, 1 ;SRV_HOOK |
jne .fail |
|
mov eax, [esp] |
DEBUGF 1,"esp=%x [esp]=%x\n",esp,eax |
|
cmp [edx + IOCTL.inp_size], 3 ; Data input must be at least 3 bytes |
jl .fail |
|
mov eax, [edx + IOCTL.input] |
cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given |
jne .fail ; other types arent supported for this card yet |
|
; check if the device is already listed |
|
mov esi, I8255x_LIST |
mov ecx, [I8255x_DEV] |
test ecx, ecx |
jz .firstdevice |
mov eax, [edx+IOCTL.input] ; get the pci bus and device numbers |
mov bx , [eax+1] ; |
.nextdevice: |
DEBUGF 1,"1" |
lodsd |
cmp bx , word [eax + device.pci_bus] ; compare with pci and device num in RTL8139 list (notice the usage of word instead of byte) |
je .find_devicenum ; Device is already loaded, let's find it's device number |
|
loop .nextdevice |
|
; This device doesnt have its own eth_device structure yet, lets create one |
.firstdevice: |
cmp [I8255x_DEV], MAX_I8255x ; First check if the driver can handle one more card |
jge .fail |
|
push edx |
stdcall KernelAlloc, device.size ; Allocate the buffer for eth_device structure |
pop edx |
test eax, eax |
jz .fail |
mov ebx, eax ; ebx is always used as a pointer to the structure (in driver, but also in kernel code) |
|
; Fill in the direct call addresses into the struct |
|
mov dword [ebx+device.reset], reset |
mov dword [ebx+device.transmit], transmit |
; mov dword [ebx+device.get_MAC], read_mac |
; mov dword [ebx+device.set_MAC], write_mac |
mov dword [ebx+device.unload], unload |
mov dword [ebx+device.name], devicename |
|
; save the pci bus and device numbers |
|
mov eax, [edx+IOCTL.input] |
mov cl , [eax+1] |
mov [ebx+device.pci_bus], cl |
mov cl , [eax+2] |
mov [ebx+device.pci_dev], cl |
|
; Now, it's time to find the base io addres of the PCI device |
; TODO: implement check if bus and dev exist on this machine |
|
mov edx, PCI_BASE_ADDRESS_0 |
.reg_check: |
movzx eax, byte [ebx+device.pci_bus] |
movzx ecx, byte [ebx+device.pci_dev] |
|
push edx ecx |
stdcall PciRead16, eax ,ecx ,edx |
pop ecx edx |
|
mov [ebx+device.io_addr], eax |
and eax, PCI_BASE_ADDRESS_IO_MASK |
test eax, eax |
jz .inc_reg |
mov eax, [ebx+device.io_addr] |
and eax, PCI_BASE_ADDRESS_SPACE_IO |
test eax, eax |
jz .inc_reg |
|
mov eax, [ebx+device.io_addr] |
and eax, PCI_BASE_ADDRESS_IO_MASK |
mov [ebx+device.io_addr], eax |
jmp .got_io |
|
.inc_reg: |
add edx, 4 |
cmp edx, PCI_BASE_ADDRESS_5 |
jbe .reg_check |
|
.got_io: |
|
; We've found the io address, find IRQ now |
|
movzx eax, byte [ebx+device.pci_bus] |
movzx ecx, byte [ebx+device.pci_dev] |
push ebx |
stdcall PciRead8, eax ,ecx ,0x3c ; 0x3c is the offset where irq can be found |
pop ebx |
mov byte [ebx+device.irq_line], al |
|
DEBUGF 1,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\ |
[ebx+device.pci_dev]:1,[ebx+device.pci_bus]:1,[ebx+device.irq_line]:1,[ebx+device.io_addr]:4 |
|
; Allocate the Receive buffer |
|
stdcall KernelAlloc, dword (RX_BUFFER_SIZE+MAX_ETH_FRAME_SIZE) |
test eax, eax |
jz .err |
mov [ebx+device.rx_buffer], eax ; Save the address to it into the device struct |
|
; Now, Clear the allocated buffer |
|
cld |
mov edi, eax |
mov ecx, (RX_BUFFER_SIZE)/4 ; divide by 4 because we are going to use DWORD |
xor eax, eax |
rep stosd |
|
; Allocate the Transmit Buffer |
|
stdcall KernelAlloc, dword (TX_BUFFER_SIZE) |
test eax, eax |
jz .err |
mov [ebx+device.tx_buffer], eax |
|
; This one needs to be cleared too.. |
|
mov edi, eax |
mov ecx, (TX_BUFFER_SIZE)/4 |
xor eax, eax |
rep stosd |
|
; Ok, the eth_device structure is ready, let's probe the device |
|
call probe ; this function will output in eax |
test eax, eax |
jnz .err ; If an error occured, exit |
|
mov eax, [I8255x_DEV] ; Add the device structure to our device list |
mov [I8255x_LIST+4*eax], ebx ; (IRQ handler uses this list to find device) |
inc [I8255x_DEV] ; |
|
jmp EthRegDev ; Register the device to kernel (ebx points to device struct) |
; Notice the jump instead of call, it is the same as |
; |
; call EthRegDev |
; ret |
; |
; Also notice that the value EthRegDev returned in eax, will be returned to |
; the caller application |
|
; If the device was already loaded, find the device number and return it in eax |
|
.find_devicenum: |
DEBUGF 1,"Trying to find device number of already registered device\n" |
mov ebx, eax |
call EthStruc2Dev ; This kernel procedure converts a pointer to device struct in ebx |
; into a device number in edi |
mov eax, edi ; Application wants it in eax instead |
DEBUGF 1,"Kernel says: %u\n", eax |
ret |
|
; If an error occured, remove all allocated data and exit (returning -1 in eax) |
|
.err: |
stdcall KernelFree, dword [ebx+device.rx_buffer] |
stdcall KernelFree, dword [ebx+device.tx_buffer] |
stdcall KernelFree, ebx |
|
.fail: |
or eax, -1 |
ret |
|
;------------------------------------------------------ |
endp |
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
;; ;; |
;; Actual Hardware dependent code starts here ;; |
;; ;; |
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
|
|
unload: |
; TODO: (in this particular order) |
; |
; - Stop the device |
; - Detach int handler |
; - Remove device from local list (RTL8139_LIST) |
; - call unregister function in kernel |
; - Remove all allocated structures and buffers the card used |
|
or eax,-1 |
|
ret |
|
;*************************************************************************** |
; Function |
; I8255x_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 |
; |
;*************************************************************************** |
|
probe: |
|
DEBUGF 1," Probing i8255x device: " |
|
; enable the device |
|
movzx eax, byte [ebx+device.pci_bus] |
movzx ecx, byte [ebx+device.pci_dev] |
stdcall PciRead16, eax ,ecx ,PCI_REG_CMD |
|
mov cx , ax |
or cx , 0x05 |
movzx eax, byte [ebx+device.pci_bus] |
movzx edx, byte [ebx+device.pci_dev] |
stdcall PciWrite16, eax ,edx ,PCI_REG_CMD, ecx |
|
; do something else TODO |
|
mov ebx, 0x6000000 |
mov ecx, 27 |
call do_eeprom_cmd |
and eax, 0xffe0000 |
cmp eax, 0xffe0000 |
je bige |
|
mov ebx, 0x1800000 |
mov ecx, 0x40 |
jmp doread |
|
bige: |
mov ebx, 0x6000000 |
mov ecx, 0x100 |
|
doread: |
|
; do-eeprom-cmd will destroy all registers |
; we have eesize in ecx |
; read_cmd in ebx |
|
; Ignore full eeprom - just load the mac address |
mov ecx, 0 |
|
drlp: |
|
|
push ecx ; save count |
push ebx |
mov eax, ecx |
shl eax, 16 |
or ebx, eax |
mov ecx, 27 |
call do_eeprom_cmd |
|
pop ebx |
pop ecx |
|
mov edx, ecx |
shl edx, 2 |
mov esi, eeprom_data |
add esi, edx |
mov [esi], eax |
|
inc ecx |
cmp ecx, 16 |
jne drlp |
|
; OK, we have the MAC address. |
|
;*************************************************************************** |
; Function |
; I8255x_reset |
; Description |
; Place the chip (ie, the ethernet card) into a virgin state |
; No inputs |
; All registers destroyed |
; |
;*************************************************************************** |
|
reset: |
|
; Now reset the card |
|
mov edx, [ebx+device.io_addr] |
add dx, 8 ; SCBPort |
xor eax, eax ; The reset cmd == 0 |
out dx, eax |
|
mov esi, 10 |
call delay_ms ; Give the card time to warm up. |
|
mov eax, lstats |
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
out dx, eax |
|
mov eax, 0x0140 ; INT_MASK | CU_STATSADDR |
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
out dx, ax |
|
call wait_for_cmd_done |
|
mov eax, 0 |
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
out dx, eax |
|
mov eax, 0x0106 ; INT_MASK | RX_ADDR_LOAD |
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
out dx, ax |
|
call wait_for_cmd_done |
; build rxrd structure |
mov ax, 0x0001 |
mov [ebx+device.status], ax |
mov ax, 0x0000 |
mov [rxfd_command], ax |
|
mov eax, rxfd_status |
sub eax, OS_BASE |
mov [ebx+device.link], eax |
|
mov eax, Ether_buffer |
sub eax, OS_BASE |
mov [ebx+device.rx_buf_addr], eax |
|
mov ax, 0 |
mov [ebx+device.count], ax |
|
mov ax, 1528 |
mov [ebx+device.size], ax |
|
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
|
mov eax, rxfd_status |
sub eax, OS_BASE |
out dx, eax |
|
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
|
mov ax, 0x0101 ; INT_MASK | RX_START |
out dx, ax |
|
call wait_for_cmd_done |
|
; start the receiver |
|
mov ax, 0 |
mov [ebx+device.status], ax |
|
mov ax, 0xc000 |
mov [ebx+device.command], ax |
|
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
|
mov eax, rxfd_status |
sub eax, OS_BASE |
out dx, eax |
|
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
|
mov ax, 0x0101 ; INT_MASK | RX_START |
out dx, ax |
|
; Init TX Stuff |
|
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
|
mov eax, 0 |
out dx, eax |
|
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
|
mov ax, 0x0160 ; INT_MASK | CU_CMD_BASE |
out dx, ax |
|
call wait_for_cmd_done |
|
; Set TX Base address |
|
; First, set up confcmd values |
|
mov ax, 2 |
mov [confcmd_command], ax |
mov eax, txfd |
sub eax, OS_BASE |
mov [confcmd_link], eax |
|
mov ax, 1 |
mov [txfd_command], ax ; CmdIASetup |
|
mov ax, 0 |
mov [txfd_status], ax |
|
mov eax, confcmd |
sub eax, OS_BASE |
mov [txfd_link], eax |
|
|
|
; ETH_ALEN is 6 bytes |
|
mov esi, eeprom_data |
mov edi, node_addr |
mov ecx, 3 |
|
drp000: |
|
mov eax, [esi] |
mov [edi], al |
shr eax, 8 |
inc edi |
mov [edi], al |
inc edi |
add esi, 4 |
loop drp000 |
|
; Hard code your MAC address into node_addr at this point, |
; If you cannot read the MAC address from the eeprom in the previous step. |
; You also have to write the mac address into txfd_tx_desc_addr, rather |
; than taking data from eeprom_data |
|
mov esi, eeprom_data |
mov edi, txfd_tx_desc_addr |
mov ecx, 3 |
|
drp001: |
|
mov eax, [esi] |
mov [edi], al |
shr eax, 8 |
inc edi |
mov [edi], al |
inc edi |
add esi, 4 |
loop drp001 |
|
mov esi, eeprom_data + (6 * 4) |
mov eax, [esi] |
shr eax, 8 |
and eax, 0x3f |
cmp eax, 4 ; DP83840 |
je drp002 |
cmp eax, 10 ; DP83840A |
je drp002 |
jmp drp003 |
|
drp002: |
|
mov ebx, [esi] |
and ebx, 0x1f |
push ebx |
mov ecx, 23 |
call mdio_read |
pop ebx |
or eax, 0x0422 |
mov ecx, 23 |
mov edx, eax |
call mdio_write |
|
drp003: |
|
mov ax, 0x4002 ; Cmdsuspend | CmdConfigure |
mov [confcmd_command], ax |
mov ax, 0 |
mov [confcmd_status], ax |
mov eax, txfd |
mov [confcmd_link], eax |
mov ebx, confcmd_data |
mov al, 0x88 ; fifo of 8 each |
mov [ebx + 1], al |
mov al, 0 |
mov [ebx + 4], al |
mov al, 0x80 |
mov [ebx + 5], al |
mov al, 0x48 |
mov [ebx + 15], al |
mov al, 0x80 |
mov [ebx + 19], al |
mov al, 0x05 |
mov [ebx + 21], al |
|
mov eax, txfd |
sub eax, OS_BASE |
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
out dx, eax |
|
mov eax, 0x0110 ; INT_MASK | CU_START |
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
out dx, ax |
|
call wait_for_cmd_done |
|
jmp skip |
|
; wait for thing to start |
drp004: |
|
mov ax, [txfd_status] |
test ax, ax |
jz drp004 |
|
skip: |
; Indicate that we have successfully reset the card |
|
xor eax, eax |
|
ret |
|
|
;*************************************************************************** |
; Function |
; I8255x_transmit |
; |
; Description |
; Transmits a packet of data via the ethernet card |
; Pointer to 48 bit destination address in edi |
; Type of packet in bx |
; size of packet in ecx |
; pointer to packet data in esi |
; |
;*************************************************************************** |
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; Transmit ;; |
;; ;; |
;; In: buffer pointer in [esp] ;; |
;; size of buffer in [esp+4] ;; |
;; pointer to device structure in ebx ;; |
;; ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
align 4 |
transmit: |
|
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp],[esp+4] |
mov eax, [esp] |
DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\ |
[eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\ |
[eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\ |
[eax+13]:2,[eax+12]:2 |
|
cmp dword [esp+4], MAX_ETH_FRAME_SIZE |
jg .finish ; packet is too long |
cmp dword [esp+4], 60 |
jl .finish ; packet is too short |
|
; mov [hdr_type], bx |
|
; mov eax, [edi] |
; mov [hdr_dst_addr], eax |
; mov ax, [edi+4] |
; mov [hdr_dst_addr+4], ax |
|
; mov eax, [node_addr] |
; mov [hdr_src_addr], eax |
; mov ax, [node_addr+4] |
; mov [hdr_src_addr+4], ax |
|
mov edx, [ebx+device.io_addr] |
in ax, dx |
and ax, 0xfc00 |
out dx, ax |
|
mov [ebx+device.txfd_status], 0 |
mov [ebx+device.txfd_command], 0x400C ; Cmdsuspend | CmdTx | CmdTxFlex |
lea eax, [ebx+device.txfd] |
mov [txfd_link], eax |
mov [txfd_count], 0x02208000 |
mov eax, txfd_tx_buf_addr0 |
call GetPgAddr |
mov [txfd_tx_desc_addr], eax |
mov eax, hdr |
call GetPgAddr |
mov [txfd_tx_buf_addr0], eax |
mov eax, 14 ; sizeof hdr |
mov [txfd_tx_buf_size0], eax |
|
; Copy the buffer address and size in |
; mov eax, esi |
; sub eax, OS_BASE |
; mov [txfd_tx_buf_addr1], eax |
; mov eax, ecx |
; mov [txfd_tx_buf_size1], eax |
|
mov eax, ebx |
call GetPgAddr |
add eax, device.txfd |
mov edx, [ebx+device.io_addr] |
add edx, 4 ; SCBPointer |
out dx, eax |
|
mov ax, 0x0110 ; INT_MASK | CU_START |
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
out dx, ax |
|
call wait_for_cmd_done |
|
mov edx, [ebx+device.io_addr] |
in ax, dx |
|
I8t_001: |
|
mov ax, [ebx+device.txfd_status] |
cmp ax, 0 |
je I8t_001 |
|
mov edx, [ebx+device.io_addr] |
in ax, dx |
|
.finish: |
|
ret |
|
|
|
;*************************************************************************** |
; Function |
; I8255x_poll |
; |
; Description |
; Polls the ethernet card for a received packet |
; Received data, if any, ends up in Ether_buffer |
; |
;*************************************************************************** |
I8255x_poll: |
|
mov ax, 0 ; assume no data |
mov [eth_rx_data_len], ax |
|
mov ax, [rxfd_status] |
cmp ax, 0 |
je i8p_exit |
|
mov ax, 0 |
mov [rxfd_status], ax |
|
mov ax, 0xc000 |
mov [rxfd_command], ax |
|
mov edx, [io_addr] |
add edx, 4 ; SCBPointer |
|
mov eax, rxfd_status |
sub eax, OS_BASE |
out dx, eax |
|
mov edx, [ebx+device.io_addr] |
add edx, 2 ; SCBCmd |
|
mov ax, 0x0101 ; INT_MASK | RX_START |
out dx, ax |
|
call wait_for_cmd_done |
|
mov esi, rxfd_packet |
mov edi, Ether_buffer |
mov ecx, 1518 |
cld |
rep movsb |
|
mov ax, [rxfd_count] |
and ax, 0x3fff |
mov [eth_rx_data_len], ax |
|
i8p_exit: |
ret |
|
|
|
|
;*************************************************************************** |
; Function |
; wait_for_cmd_done |
; |
; Description |
; waits for the hardware to complete a command |
; port address in edx |
; |
; al destroyed |
;*************************************************************************** |
|
wait_for_cmd_done: |
|
; mov edx, [ebx + device.io_addr] |
|
.loop: |
in al , dx |
test al , al |
jnz .loop |
|
ret |
|
|
|
;*************************************************************************** |
; Function |
; mdio_read |
; |
; Description |
; This probably reads a register in the "physical media interface chip" |
; Phy_id in ebx NOW EAX |
; location in ecx |
; |
; Data returned in eax |
; |
;*************************************************************************** |
|
mdio_read: |
|
mov edx, [ebx + device.io_addr] |
add edx, 16 ; SCBCtrlMDI |
|
; mov eax, 0x08000000 |
; shl ecx, 16 |
; or eax, ecx |
; shl ebx, 21 |
; or eax, ebx |
; |
shl ecx, 16 ; |
shl eax, 21 ; |
or eax, ecx ; |
or eax, 0x08000000 ; |
out dx , eax ; |
; |
mrlp: |
call delay_us |
in eax, dx |
mov ecx, eax |
and ecx, 0x10000000 |
jz mrlp |
|
and eax, 0xffff |
ret |
|
|
|
;*************************************************************************** |
; Function |
; mdio_write |
; |
; Description |
; This probably writes a register in the "physical media interface chip" |
; Phy_id in ebx NOW EAX |
; location in ecx |
; data in edx |
; Data returned in eax |
; |
;*************************************************************************** |
|
mdio_write: |
|
; mov eax, 0x04000000 |
; shl ecx, 16 |
; or eax, ecx |
; shl ebx, 21 |
; or eax, ebx |
; or eax, edx |
|
shl ecx, 16 ; |
shl ebx, 21 ; |
or eax, ecx ; |
or eax, edx ; |
or eax, 0x04000000 ; |
|
mov edx, [ebx + device.io_addr] |
add edx, 16 ; SCBCtrlMDI |
out dx, eax |
|
mwlp: |
call delay_us |
in eax, dx |
mov ecx, eax |
and ecx, 0x10000000 |
jz mwlp |
|
and eax, 0xffff |
ret |
|
|
;*************************************************************************** |
; Function |
; do_eeprom_cmd |
; |
; Description |
; writes a cmd to the ethernet cards eeprom, by bit bashing |
; cmd in ebx NOW EAX |
; cmd length in ecx |
; return in eax |
;*************************************************************************** |
|
do_eeprom_cmd: |
|
push eax |
mov edx, [ebx + device.io_addr] |
add dx, 14 ; the value SCBeeprom |
|
mov ax, EE_ENB |
out dx, ax |
call delay_us |
|
mov ax, 0x4803 ; EE_ENB | EE_SHIFT_CLK |
out dx, ax |
call delay_us |
|
; dx holds ee_addr |
; ecx holds count |
; eax holds cmd |
xor edi, edi ; this will be the receive data |
|
dec_001: |
|
mov esi, 1 |
|
dec ecx |
shl esi, cl |
inc ecx |
and esi, [esp] |
mov eax, EE_WRITE_0 ; I am assuming this doesnt affect the flags.. |
cmp esi, 0 |
jz dec_002 |
mov eax, EE_WRITE_1 |
|
dec_002: |
|
out dx, ax |
call delay_us |
|
or ax, EE_SHIFT_CLK |
out dx, ax |
call delay_us |
|
shl edi,1 |
|
in ax, dx |
and ax, EE_DATA_READ |
cmp ax,0 |
jz dec_003 |
inc edi |
|
dec_003: |
|
loop dec_001 |
|
mov ax, EE_ENB |
out dx, ax |
call delay_us |
|
mov ax, 0x4800 |
out dx, ax |
call delay_us |
|
add esp, 4 |
mov eax, edi |
|
ret |
|
|
|
|
|
; End of code |
|
align 4 ; Place all initialised data here |
|
I8255x_DEV dd 0 |
version dd (5 shl 16) or (API_VERSION and 0xFFFF) |
my_service db 'I8255x',0 ; max 16 chars include zero |
devicename db 'Intel Etherexpress pro/100',0 |
|
|
|
include_debug_strings ; All data wich FDO uses will be included here |
|
section '.data' data readable writable align 16 ; place all uninitialized data place here |
|
I8255x_LIST rd I8255x ; This list contains all pointers to device structures the driver is handling |
|