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kolibrios/kernel/branches/net/drivers/mtd80x.asm

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MTD80x driver for net branch: Only mtd803 aka surecom ep-320x for now. git-svn-id: svn://kolibrios.org@1561 a494cfbc-eb01-0410-851d-a64ba20cac60
2010-08-08 01:04:24 +04:00
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; MTD80x driver for KolibriOS ;;
;; ;;
;; Based on mtd80x.c from the etherboot project ;;
;; ;;
;; Written by hidnplayr@kolibrios.org ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
format MS COFF
API_VERSION equ 0x01000100
DRIVER_VERSION equ 5
MAX_DEVICES equ 16
DEBUG equ 1
__DEBUG__ equ 1
__DEBUG_LEVEL__ equ 1
NUM_TX_DESC equ 4
NUM_RX_DESC equ 4
include 'proc32.inc'
include 'imports.inc'
include 'fdo.inc'
include 'netdrv.inc'
public START
public service_proc
public version
; for different PHY
MysonPHY equ 1
AhdocPHY equ 2
SeeqPHY equ 3
MarvellPHY equ 4
Myson981 equ 5
LevelOnePHY equ 6
OtherPHY equ 10
; Offsets to the Command and Status Registers.
PAR0 equ 0x0 ; physical address 0-3
PAR1 equ 0x04 ; physical address 4-5
MAR0 equ 0x08 ; multicast address 0-3
MAR1 equ 0x0C ; multicast address 4-7
FAR0 equ 0x10 ; flow-control address 0-3
FAR1 equ 0x14 ; flow-control address 4-5
TCRRCR equ 0x18 ; receive & transmit configuration
BCR equ 0x1C ; bus command
TXPDR equ 0x20 ; transmit polling demand
RXPDR equ 0x24 ; receive polling demand
RXCWP equ 0x28 ; receive current word pointer
TXLBA equ 0x2C ; transmit list base address
RXLBA equ 0x30 ; receive list base address
ISR equ 0x34 ; interrupt status
IMR equ 0x38 ; interrupt mask
FTH equ 0x3C ; flow control high/low threshold
MANAGEMENT equ 0x40 ; bootrom/eeprom and mii management
TALLY equ 0x44 ; tally counters for crc and mpa
TSR equ 0x48 ; tally counter for transmit status
BMCRSR equ 0x4c ; basic mode control and status
PHYIDENTIFIER equ 0x50 ; phy identifier
ANARANLPAR equ 0x54 ; auto-negotiation advertisement and link partner ability
ANEROCR equ 0x58 ; auto-negotiation expansion and pci conf.
BPREMRPSR equ 0x5c ; bypass & receive error mask and phy status
; Bits in the interrupt status/enable registers.
RFCON equ 0x00020000 ; receive flow control xon packet
RFCOFF equ 0x00010000 ; receive flow control xoff packet
LSCStatus equ 0x00008000 ; link status change
ANCStatus equ 0x00004000 ; autonegotiation completed
FBE equ 0x00002000 ; fatal bus error
FBEMask equ 0x00001800 ; mask bit12-11
ParityErr equ 0x00000000 ; parity error
TargetErr equ 0x00001000 ; target abort
MasterErr equ 0x00000800 ; master error
TUNF equ 0x00000400 ; transmit underflow
ROVF equ 0x00000200 ; receive overflow
ETI equ 0x00000100 ; transmit early int
ERI equ 0x00000080 ; receive early int
CNTOVF equ 0x00000040 ; counter overflow
RBU equ 0x00000020 ; receive buffer unavailable
TBU equ 0x00000010 ; transmit buffer unavilable
TI equ 0x00000008 ; transmit interrupt
RI equ 0x00000004 ; receive interrupt
RxErr equ 0x00000002 ; receive error
; Bits in the NetworkConfig register.
RxModeMask equ 0xe0
AcceptAllPhys equ 0x80 ; promiscuous mode
AcceptBroadcast equ 0x40 ; accept broadcast
AcceptMulticast equ 0x20 ; accept mutlicast
AcceptRunt equ 0x08 ; receive runt pkt
ALP equ 0x04 ; receive long pkt
AcceptErr equ 0x02 ; receive error pkt
AcceptMyPhys equ 0x00000000
RxEnable equ 0x00000001
RxFlowCtrl equ 0x00002000
TxEnable equ 0x00040000
TxModeFDX equ 0x00100000
TxThreshold equ 0x00e00000
PS1000 equ 0x00010000
PS10 equ 0x00080000
FD equ 0x00100000
; Bits in network_desc.status
RXOWN equ 0x80000000 ; own bit
FLNGMASK equ 0x0fff0000 ; frame length
FLNGShift equ 16
MARSTATUS equ 0x00004000 ; multicast address received
BARSTATUS equ 0x00002000 ; broadcast address received
PHYSTATUS equ 0x00001000 ; physical address received
RXFSD equ 0x00000800 ; first descriptor
RXLSD equ 0x00000400 ; last descriptor
ErrorSummary equ 0x80 ; error summary
RUNT equ 0x40 ; runt packet received
LONG equ 0x20 ; long packet received
FAE equ 0x10 ; frame align error
CRC equ 0x08 ; crc error
RXER equ 0x04 ; receive error
; rx_desc_control_bits
RXIC equ 0x00800000 ; interrupt control
RBSShift equ 0
; tx_desc_status_bits
TXOWN equ 0x80000000 ; own bit
JABTO equ 0x00004000 ; jabber timeout
CSL equ 0x00002000 ; carrier sense lost
LC equ 0x00001000 ; late collision
EC equ 0x00000800 ; excessive collision
UDF equ 0x00000400 ; fifo underflow
DFR equ 0x00000200 ; deferred
HF equ 0x00000100 ; heartbeat fail
NCRMask equ 0x000000ff ; collision retry count
NCRShift equ 0
; tx_desc_control_bits
TXIC equ 0x80000000 ; interrupt control
ETIControl equ 0x40000000 ; early transmit interrupt
TXLD equ 0x20000000 ; last descriptor
TXFD equ 0x10000000 ; first descriptor
CRCEnable equ 0x08000000 ; crc control
PADEnable equ 0x04000000 ; padding control
RetryTxLC equ 0x02000000 ; retry late collision
PKTSMask equ 0x3ff800 ; packet size bit21-11
PKTSShift equ 11
TBSMask equ 0x000007ff ; transmit buffer bit 10-0
TBSShift equ 0
; BootROM/EEPROM/MII Management Register
MASK_MIIR_MII_READ equ 0x00000000
MASK_MIIR_MII_WRITE equ 0x00000008
MASK_MIIR_MII_MDO equ 0x00000004
MASK_MIIR_MII_MDI equ 0x00000002
MASK_MIIR_MII_MDC equ 0x00000001
; ST+OP+PHYAD+REGAD+TA
OP_READ equ 0x6000 ; ST:01+OP:10+PHYAD+REGAD+TA:Z0
OP_WRITE equ 0x5002 ; ST:01+OP:01+PHYAD+REGAD+TA:10
; -------------------------------------------------------------------------
; Constants for Myson PHY
; -------------------------------------------------------------------------
MysonPHYID equ 0xd0000302
MysonPHYID0 equ 0x0302
StatusRegister equ 18
SPEED100 equ 0x0400 ; bit10
FULLMODE equ 0x0800 ; bit11
; -------------------------------------------------------------------------
; Constants for Seeq 80225 PHY
; -------------------------------------------------------------------------
SeeqPHYID0 equ 0x0016
MIIRegister18 equ 18
SPD_DET_100 equ 0x80
DPLX_DET_FULL equ 0x40
; -------------------------------------------------------------------------
; Constants for Ahdoc 101 PHY
; -------------------------------------------------------------------------
AhdocPHYID0 equ 0x0022
DiagnosticReg equ 18
DPLX_FULL equ 0x0800
Speed_100 equ 0x0400
; --------------------------------------------------------------------------
; Constants
; --------------------------------------------------------------------------
MarvellPHYID0 equ 0x0141
LevelOnePHYID0 equ 0x0013
MII1000BaseTControlReg equ 9
MII1000BaseTStatusReg equ 10
SpecificReg equ 17
; for 1000BaseT Control Register
PHYAbletoPerform1000FullDuplex equ 0x0200
PHYAbletoPerform1000HalfDuplex equ 0x0100
PHY1000AbilityMask equ 0x300
; for phy specific status register, marvell phy.
SpeedMask equ 0x0c000
Speed_1000M equ 0x08000
Speed_100M equ 0x4000
Speed_10M equ 0
Full_Duplex equ 0x2000
; for phy specific status register, levelone phy
LXT1000_100M equ 0x08000
LXT1000_1000M equ 0x0c000
LXT1000_Full equ 0x200
; for PHY
LinkIsUp equ 0x0004
LinkIsUp2 equ 0x00040000
virtual at 0
mtd_desc:
.status dd ?
.control dd ?
.buffer dd ?
.next_desc dd ?
.next_desc_logical dd ?
.skbuff dd ?
.reserved1 dd ?
.reserved2 dd ?
.size = $
end virtual
virtual at ebx
device:
ETH_DEVICE
.tx_desc rb NUM_TX_DESC*mtd_desc.size
.rx_desc rb NUM_RX_DESC*mtd_desc.size
.io_addr dd ?
.pci_bus db ?
.pci_dev db ?
.irq_line db ?
.dev_id dw ?
.flags dd ?
.crvalue dd ?
.bcrvalue dd ?
.cur_rx dd ?
.cur_tx dd ?
; These values are keep track of the transceiver/media in use.
.linkok dd ?
.line_speed dd ?
.duplexmode dd ?
.default_port dd ?
.PHYType dd ?
; MII transceiver section.
.mii_cnt dd ? ; MII device addresses.
.phys db ? ; MII device addresses.
device_size = $ - device
end virtual
section '.flat' code readable align 16
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; proc START ;;
;; ;;
;; (standard driver proc) ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 4
proc START stdcall, state:dword
cmp [state], 1
jne .exit
.entry:
DEBUGF 2,"Loading mtd80x 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, [IOCTL.io_code]
;------------------------------------------------------
cmp eax, 0 ;SRV_GETVERSION
jne @F
cmp [IOCTL.out_size], 4
jl .fail
mov eax, [IOCTL.output]
mov [eax], dword API_VERSION
xor eax, eax
ret
;------------------------------------------------------
@@:
cmp eax, 1 ;SRV_HOOK
jne .fail
cmp [IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
jl .fail
mov eax, [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, device_list
mov ecx, [devices]
test ecx, ecx
jz .firstdevice
; mov eax, [IOCTL.input] ; get the pci bus and device numbers
mov ax , [eax+1] ;
.nextdevice:
mov ebx, [esi]
cmp ax , word [device.pci_bus] ; compare with pci and device num in device list (notice the usage of word instead of byte)
je .find_devicenum ; Device is already loaded, let's find it's device number
add esi, 4
loop .nextdevice
; This device doesnt have its own eth_device structure yet, lets create one
.firstdevice:
cmp [devices], MAX_DEVICES ; First check if the driver can handle one more card
jge .fail
allocate_and_clear ebx, device_size, .fail
; Fill in the direct call addresses into the struct
mov [device.reset], reset
mov [device.transmit], transmit
mov [device.get_MAC], read_mac
mov [device.set_MAC], write_mac
mov [device.unload], unload
mov [device.name], my_service
; save the pci bus and device numbers
mov eax, [IOCTL.input]
mov cl , [eax+1]
mov [device.pci_bus], cl
mov cl , [eax+2]
mov [device.pci_dev], cl
; Now, it's time to find the base io addres of the PCI device
find_io [device.pci_bus], [device.pci_dev], [device.io_addr]
; We've found the io address, find IRQ now
find_irq [device.pci_bus], [device.pci_dev], [device.irq_line]
DEBUGF 2,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
[device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:8
; Ok, the eth_device structure is ready, let's probe the device
; Because initialization fires IRQ, IRQ handler must be aware of this device
mov eax, [devices] ; Add the device structure to our device list
mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device)
inc [devices] ;
call probe ; this function will output in eax
test eax, eax
jnz .err2 ; If an error occured, exit
mov [device.type], NET_TYPE_ETH
call NetRegDev
cmp eax, -1
je .destroy
ret
; If the device was already loaded, find the device number and return it in eax
.find_devicenum:
DEBUGF 2,"Trying to find device number of already registered device\n"
mov ebx, eax
call NetPtrToNum ; 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 2,"Kernel says: %u\n", eax
ret
; If an error occured, remove all allocated data and exit (returning -1 in eax)
.destroy:
; todo: reset device into virgin state
.err2:
dec [devices]
.err:
DEBUGF 2,"removing device structure\n"
stdcall KernelFree, ebx
.fail:
or eax, -1
ret
;------------------------------------------------------
endp
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
;; ;;
;; Actual Hardware dependent code starts here ;;
;; ;;
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
align 4
unload:
; TODO: (in this particular order)
;
; - Stop the device
; /* Disable Tx Rx*/
; outl( mtdx.crvalue & (~TxEnable) & (~RxEnable), mtdx.ioaddr + TCRRCR );
;
; /* Reset the chip to erase previous misconfiguration. */
; mtd_reset(nic);
; - Detach int handler
; - Remove device from local list (device_list)
; - call unregister function in kernel
; - Remove all allocated structures and buffers the card used
or eax,-1
ret
;-------
;
; PROBE
;
;-------
align 4
probe:
DEBUGF 2,"Probing mtd80x device\n"
make_bus_master [device.pci_bus], [device.pci_dev]
movzx eax, [device.pci_bus]
movzx ecx, [device.pci_dev]
stdcall PciRead32, eax ,ecx ,0
cmp ax , 0x1516
jne .notfound
shr eax, 16
mov [device.dev_id], ax
cmp ax, 0x0800
je .has_mii_xcvr
cmp ax, 0x0803
je .has_chip_xcvr
cmp ax, 0x0891
je .has_mii_xcvr
.notfound:
DEBUGF 1,"Device not supported!\n"
xor eax, eax
dec eax
ret
.has_chip_xcvr:
DEBUGF 1,"Device has chip xcvr\n"
jmp .xcvr_set
.has_mii_xcvr:
DEBUGF 1,"Device has mii xcvr\n"
.xcvr_set:
call read_mac
; Reset the chip to erase previous misconfiguration.
set_io 0
set_io BCR
xor eax, eax
inc eax
out dx, eax
; find the connected MII xcvrs
cmp [device.dev_id], 0x0803
je .is_803
; int phy, phy_idx equ 0;
;
; for (phy equ 1; phy < 32 && phy_idx < 1; phy++) {
; int mii_status equ mdio_read(nic, phy, 1);
;
; if (mii_status !equ 0xffff && mii_status !equ 0x0000) {
; mtdx.phys[phy_idx] equ phy;
;
; DBG ( "%s: MII PHY found at address %d, status "
; "0x%4.4x.\n", mtdx.nic_name, phy, mii_status );
; /* get phy type */
; {
; unsigned int data;
;
; data equ mdio_read(nic, mtdx.phys[phy_idx], 2);
; if (data equequ SeeqPHYID0)
; mtdx.PHYType equ SeeqPHY;
; else if (data equequ AhdocPHYID0)
; mtdx.PHYType equ AhdocPHY;
; else if (data equequ MarvellPHYID0)
; mtdx.PHYType equ MarvellPHY;
; else if (data equequ MysonPHYID0)
; mtdx.PHYType equ Myson981;
; else if (data equequ LevelOnePHYID0)
; mtdx.PHYType equ LevelOnePHY;
; else
; mtdx.PHYType equ OtherPHY;
; }
; phy_idx++;
; }
; }
;
; mtdx.mii_cnt equ phy_idx;
; if (phy_idx equequ 0) {
; printf("%s: MII PHY not found -- this device may "
; "not operate correctly.\n", mtdx.nic_name);
; }
jmp .no_803
.is_803:
mov [device.phys], 32
; get phy type
set_io 0
set_io PHYIDENTIFIER
in eax, dx
cmp eax, MysonPHYID
jne @f
mov [device.PHYType], MysonPHY
DEBUGF 1,"MysonPHY\n"
jmp .no_803
@@:
mov [device.PHYType], OtherPHY
DEBUGF 1,"OtherPHY\n"
.no_803:
;-------
;
; RESET
;
;-------
align 4
reset:
DEBUGF 1,"Resetting mtd80x\n"
;--------------------------------
; insert irq handler on given irq
movzx eax, [device.irq_line]
DEBUGF 1,"Attaching int handler to irq %x\n", eax:1
stdcall AttachIntHandler, eax, int_handler, dword 0
test eax, eax
jnz @f
DEBUGF 1,"\nCould not attach int handler!\n"
; or eax, -1
; ret
@@:
; Reset the chip to erase previous misconfiguration.
set_io 0
set_io BCR
xor eax, eax
inc eax
out dx, eax
call init_ring
; Initialize other registers.
; Configure the PCI bus bursts and FIFO thresholds.
mov [device.bcrvalue], 0x10 ; little-endian, 8 burst length
mov [device.crvalue], 0xa00 ; 128 burst length
cmp [device.dev_id], 0x891
jne @f
or [device.bcrvalue], 0x200 ; set PROG bit
or [device.crvalue], 0x02000000 ; set enhanced bit
@@:
or [device.crvalue], RxEnable + TxThreshold + TxEnable
call set_rx_mode
set_io 0
set_io BCR
mov eax, [device.bcrvalue]
out dx, eax
set_io TCRRCR
mov eax, [device.crvalue]
out dx, eax
call getlinkstatus
call getlinktype
; Restart Rx engine if stopped.
set_io 0
set_io RXPDR
xor eax, eax
out dx, eax
; Enable interrupts
set_io 0
set_io ISR
mov eax, (FBE or TUNF or CNTOVF or RBU or TI or RI)
out dx, eax
set_io IMR
; mov eax, (FBE or TUNF or CNTOVF or RBU or TI or RI)
out dx, eax
; clear packet/byte counters
xor eax, eax
lea edi, [device.bytes_tx]
mov ecx, 6
rep stosd
mov [device.mtu], 1514
xor eax, eax
ret
align 4
init_ring:
DEBUGF 1,"initializing rx and tx ring\n"
; Initialize all Rx descriptors
lea esi, [device.rx_desc]
mov [device.cur_rx], esi
mov ecx, NUM_RX_DESC
.rx_desc_loop:
mov [esi + mtd_desc.status], RXOWN
mov [esi + mtd_desc.control], 1536 shl RBSShift
lea eax, [esi + mtd_desc.size]
mov [esi + mtd_desc.next_desc_logical], eax
push ecx esi
GetRealAddr
mov [esi + mtd_desc.next_desc], eax
stdcall KernelAlloc, 1536
pop esi
push esi
mov [esi + mtd_desc.skbuff], eax
call GetPgAddr
pop esi ecx
mov [esi + mtd_desc.buffer], eax
add esi, mtd_desc.size
loop .rx_desc_loop
; Mark the last entry as wrapping the ring.
lea eax, [device.rx_desc]
mov [esi - mtd_desc.size + mtd_desc.next_desc_logical], eax
push esi
GetRealAddr
pop esi
mov [esi - mtd_desc.size + mtd_desc.next_desc], eax
set_io 0
set_io RXLBA
out dx, eax
; Initialize all Tx descriptors
lea esi, [device.tx_desc]
mov [device.cur_tx], esi
mov ecx, NUM_TX_DESC
.tx_desc_loop:
mov [esi + mtd_desc.status], 0
lea eax, [esi + mtd_desc.size]
mov [esi + mtd_desc.next_desc_logical], eax
push ecx esi
GetRealAddr
pop esi ecx
mov [esi + mtd_desc.next_desc], eax
add esi, mtd_desc.size
loop .tx_desc_loop
; Mark the last entry as wrapping the ring.
lea eax, [device.tx_desc]
mov [esi - mtd_desc.size + mtd_desc.next_desc_logical], eax
push esi
GetRealAddr
pop esi
mov [esi - mtd_desc.size + mtd_desc.next_desc], eax
set_io 0
set_io TXLBA
out dx, eax
ret
align 4
set_rx_mode:
DEBUGF 1,"Setting RX mode\n"
; Too many to match, or accept all multicasts.
set_io 0
set_io MAR0
xor eax, eax
not eax
out dx, eax
set_io MAR1
out dx, eax
and [device.crvalue], not (RxModeMask)
or [device.crvalue], AcceptBroadcast + AcceptMulticast + AcceptMyPhys
ret
align 4
getlinkstatus:
DEBUGF 1,"Getting link status\n"
mov [device.linkok], 0
cmp [device.PHYType], MysonPHY
jne .no_myson_phy
set_io 0
set_io BMCRSR
mov ecx, 1000
.loop1:
in eax, dx
test eax, LinkIsUp2
jnz .link_ok
push ecx edx ebx
mov esi, 10
call Sleep
pop ebx edx ecx
loop .loop1
ret
.no_myson_phy:
; for (i equ 0; i < DelayTime; ++i) {
; if (mdio_read(nic, mtdx.phys[0], MII_BMSR) & BMSR_LSTATUS) {
; mtdx.linkok equ 1;
; return;
; }
; m80x_delay(100);
ret
.link_ok:
DEBUGF 1,"Link is up\n"
inc [device.linkok]
ret
align 4
getlinktype:
DEBUGF 1,"Getting link type\n"
cmp [device.PHYType], MysonPHY
jne .no_myson_phy
DEBUGF 1,"myson PHY\n"
set_io 0
set_io TCRRCR
in eax, dx
mov [device.duplexmode], 1 ; 1 equ half duplex
test eax, FD
jne @f
DEBUGF 1,"full duplex\n"
inc [device.duplexmode] ; 2 equ full duplex
@@:
mov [device.line_speed], 1 ; 1 equ 10M
test eax, PS10
jne @f
DEBUGF 1,"100mbit\n"
inc [device.line_speed] ; 2 equ 100M
@@:
ret
.no_myson_phy:
DEBUGF 1,"no myson phy\n"
; if (mtdx.PHYType equequ SeeqPHY) { /* this PHY is SEEQ 80225 */
; unsigned int data;
;
; data equ mdio_read(dev, mtdx.phys[0], MIIRegister18);
; if (data & SPD_DET_100)
; mtdx.line_speed equ 2; /* 100M */
; else
; mtdx.line_speed equ 1; /* 10M */
; if (data & DPLX_DET_FULL)
; mtdx.duplexmode equ 2; /* full duplex mode */
; else
; mtdx.duplexmode equ 1; /* half duplex mode */
; } else if (mtdx.PHYType equequ AhdocPHY) {
; unsigned int data;
;
; data equ mdio_read(dev, mtdx.phys[0], DiagnosticReg);
; if (data & Speed_100)
; mtdx.line_speed equ 2; /* 100M */
; else
; mtdx.line_speed equ 1; /* 10M */
; if (data & DPLX_FULL)
; mtdx.duplexmode equ 2; /* full duplex mode */
; else
; mtdx.duplexmode equ 1; /* half duplex mode */
; }
; else if (mtdx.PHYType equequ MarvellPHY) {
; unsigned int data;
;
; data equ mdio_read(dev, mtdx.phys[0], SpecificReg);
; if (data & Full_Duplex)
; mtdx.duplexmode equ 2; /* full duplex mode */
; else
; mtdx.duplexmode equ 1; /* half duplex mode */
; data &equ SpeedMask;
; if (data equequ Speed_1000M)
; mtdx.line_speed equ 3; /* 1000M */
; else if (data equequ Speed_100M)
; mtdx.line_speed equ 2; /* 100M */
; else
; mtdx.line_speed equ 1; /* 10M */
; }
; else if (mtdx.PHYType equequ Myson981) {
; unsigned int data;
;
; data equ mdio_read(dev, mtdx.phys[0], StatusRegister);
;
; if (data & SPEED100)
; mtdx.line_speed equ 2;
; else
; mtdx.line_speed equ 1;
;
; if (data & FULLMODE)
; mtdx.duplexmode equ 2;
; else
; mtdx.duplexmode equ 1;
; }
; else if (mtdx.PHYType equequ LevelOnePHY) {
; unsigned int data;
;
; data equ mdio_read(dev, mtdx.phys[0], SpecificReg);
; if (data & LXT1000_Full)
; mtdx.duplexmode equ 2; /* full duplex mode */
; else
; mtdx.duplexmode equ 1; /* half duplex mode */
; data &equ SpeedMask;
; if (data equequ LXT1000_1000M)
; mtdx.line_speed equ 3; /* 1000M */
; else if (data equequ LXT1000_100M)
; mtdx.line_speed equ 2; /* 100M */
; else
; mtdx.line_speed equ 1; /* 10M */
; }
; // chage crvalue
; // mtdx.crvalue&equ(~PS10)&(~FD);
; mtdx.crvalue &equ (~PS10) & (~FD) & (~PS1000);
; if (mtdx.line_speed equequ 1)
; mtdx.crvalue |equ PS10;
; else if (mtdx.line_speed equequ 3)
; mtdx.crvalue |equ PS1000;
; if (mtdx.duplexmode equequ 2)
; mtdx.crvalue |equ FD;
;
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Transmit ;;
;; ;;
;; In: buffer pointer in [esp+4] ;;
;; size of buffer in [esp+8] ;;
;; pointer to device structure in ebx ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 4
transmit:
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp+4],[esp+8]
mov eax, [esp+4]
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+8], 1514
ja .fail
mov esi, [device.cur_tx]
push [esi + mtd_desc.next_desc_logical]
pop [device.cur_tx]
; todo: check if descriptor is not owned by the device!
mov eax, [esp + 4]
mov [esi + mtd_desc.skbuff], eax
GetRealAddr
mov [esi + mtd_desc.buffer], eax
mov eax, [esp + 8]
shl eax, PKTSShift ; packet size
or eax, TXLD + TXFD + CRCEnable + PADEnable + TXIC + 1536 shl TBSShift ; buffer size
mov [esi + mtd_desc.control], eax
mov [esi + mtd_desc.status], TXOWN
;-------------
; Update stats
inc [device.packets_tx]
mov eax, [esp+8]
add dword [device.bytes_tx], eax
adc dword [device.bytes_tx + 4], 0
; Point to transmit descriptor
set_io 0
set_io TXLBA
mov eax, esi
GetRealAddr
out dx, eax
; set_io TCRRCR
; mov eax, [device.crvalue]
; out dx, eax
; Wake the potentially-idle transmit channel.
set_io TXPDR ; TX Poll
xor eax, eax
out dx, eax
DEBUGF 1,"transmit ok\n"
xor eax, eax
ret 8
.fail:
DEBUGF 1,"transmit failed\n"
or eax, -1
stdcall KernelFree, [esp + 4]
ret 8
align 4
read_mac:
set_io 0
set_io PAR0
lea edi, [device.mac]
insd
stosd
set_io PAR1
insw
stosw
DEBUGF 1,"MAC = %x-%x-%x-%x-%x-%x\n",\
[device.mac+0]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2
ret
align 4
write_mac:
ret
;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Interrupt handler ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;
align 4
int_handler:
DEBUGF 1,"\nIRQ %x\n",eax:2 ; no, you cant replace 'eax:2' with 'al', this must be a bug in FDO
; find pointer of device wich made IRQ occur
mov ecx, [devices]
test ecx, ecx
jz .fail
mov esi, device_list
.nextdevice:
mov ebx, dword [esi]
set_io 0
set_io ISR
in eax, dx
out dx , eax ; send it back to ACK
; and eax, ; int mask
test eax, eax
jnz .got_it
.continue:
add esi, 4
dec ecx
jnz .nextdevice
ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver)
.got_it:
DEBUGF 1,"Status=%x\n", eax
test ax, RI ; receive interrupt
jz .no_rx
DEBUGF 1,"Receive interrupt\n"
.rx:
push ax
.rx_loop:
mov esi, [device.cur_rx]
test [esi + mtd_desc.status], RXOWN
jnz .fail_rx
push .rx_complete
mov ecx, [esi + mtd_desc.status]
shr ecx, FLNGShift
sub ecx, 4 ; we dont need CRC
push ecx
;-------------
; Update stats
add dword [device.bytes_rx], ecx
adc dword [device.bytes_rx + 4], 0
inc dword [device.packets_rx]
push [esi + mtd_desc.skbuff]
jmp EthReceiver
.rx_complete:
mov esi, [device.cur_rx]
mov [esi + mtd_desc.control], 1536 shl RBSShift
stdcall KernelAlloc, 1536
mov [esi + mtd_desc.skbuff], eax
call GetPgAddr
mov [esi + mtd_desc.buffer], eax
mov [esi + mtd_desc.status], RXOWN
mov eax, [esi + mtd_desc.next_desc_logical]
mov [device.cur_rx], eax
jmp .rx_loop
;
; while( ( mtdx.cur_rx->status & RXOWN ) == 0 )
; {
; mtdx.cur_rx->status = RXOWN;
; mtdx.cur_rx = mtdx.cur_rx->next_desc_logical;
; }
;
; /* Restart Rx engine if stopped. */
; outl(0, mtdx.ioaddr + RXPDR);
.fail_rx:
DEBUGF 1,"RX failed\n"
pop ax
.no_rx:
test ax, TI ; transmit interrupt
jz .no_tx
DEBUGF 1,"Transmit interrupt\n"
push ax
lea esi, [device.tx_desc]
mov ecx, NUM_TX_DESC
.tx_loop:
test [esi + mtd_desc.status], TXOWN
jnz .skip_this_one
mov eax, [esi + mtd_desc.skbuff]
test eax, eax
je .skip_this_one
mov [esi + mtd_desc.skbuff], 0
DEBUGF 1,"freeing buffer:%x\n", eax
stdcall KernelFree, eax
.skip_this_one:
mov esi, [esi + mtd_desc.next_desc_logical]
loop .tx_loop
pop ax
.no_tx:
test ax, TBU
jz .no_tbu
DEBUGF 1,"Transmit buffer unavailable!\n"
.no_tbu:
.fail:
ret
; End of code
align 4 ; Place all initialised data here
devices dd 0
version dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF)
my_service db 'mtd80x',0 ; max 16 chars include zero
; 0x1516, 0x0800, "MTD800", "Myson MTD800"
; 0x1516, 0x0803, "MTD803", "Surecom EP-320X"
; 0x1516, 0x0891, "MTD891", "Myson MTD891"
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
device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling
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