forked from KolibriOS/kolibrios
1121 lines
29 KiB
NASM
1121 lines
29 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
|
|
;; Distributed under terms of the GNU General Public License ;;
|
|
;; ;;
|
|
;; R6040 driver for KolibriOS ;;
|
|
;; ;;
|
|
;; based on R6040.c from linux ;;
|
|
;; ;;
|
|
;; Written by Asper (asper.85@mail.ru) ;;
|
|
;; and hidnplayr (hidnplayr@gmail.com) ;;
|
|
;; ;;
|
|
;; GNU GENERAL PUBLIC LICENSE ;;
|
|
;; Version 2, June 1991 ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
format MS COFF
|
|
|
|
API_VERSION = 0x01000100
|
|
DRIVER_VERSION = 5
|
|
|
|
MAX_DEVICES = 16
|
|
|
|
DEBUG = 1
|
|
__DEBUG__ = 1
|
|
__DEBUG_LEVEL__ = 2
|
|
|
|
W_MAX_TIMEOUT = 0x0FFF ; max time out delay time
|
|
|
|
TX_TIMEOUT = 6000 ; Time before concluding the transmitter is hung, in ms
|
|
|
|
TX_RING_SIZE = 4 ; RING sizes must be a power of 2
|
|
RX_RING_SIZE = 4
|
|
|
|
RX_BUF_LEN_IDX = 3 ; 0==8K, 1==16K, 2==32K, 3==64K
|
|
|
|
; Threshold is bytes transferred to chip before transmission starts.
|
|
|
|
TX_FIFO_THRESH = 256 ; In bytes, rounded down to 32 byte units.
|
|
|
|
; The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024.
|
|
|
|
RX_FIFO_THRESH = 4 ; Rx buffer level before first PCI xfer.
|
|
RX_DMA_BURST = 4 ; Maximum PCI burst, '4' is 256 bytes
|
|
TX_DMA_BURST = 4
|
|
|
|
|
|
|
|
include '../proc32.inc'
|
|
include '../imports.inc'
|
|
include '../fdo.inc'
|
|
include '../netdrv.inc'
|
|
|
|
public START
|
|
public service_proc
|
|
public version
|
|
|
|
; Operational parameters that usually are not changed.
|
|
|
|
PHY1_ADDR = 1 ;For MAC1
|
|
PHY2_ADDR = 3 ;For MAC2
|
|
PHY_MODE = 0x3100 ;PHY CHIP Register 0
|
|
PHY_CAP = 0x01E1 ;PHY CHIP Register 4
|
|
|
|
;**************************************************************************
|
|
; RDC R6040 Register Definitions
|
|
;**************************************************************************
|
|
MCR0 = 0x00 ;Control register 0
|
|
MCR1 = 0x01 ;Control register 1
|
|
MAC_RST = 0x0001 ;Reset the MAC
|
|
MBCR = 0x08 ;Bus control
|
|
MT_ICR = 0x0C ;TX interrupt control
|
|
MR_ICR = 0x10 ;RX interrupt control
|
|
MTPR = 0x14 ;TX poll command register
|
|
MR_BSR = 0x18 ;RX buffer size
|
|
MR_DCR = 0x1A ;RX descriptor control
|
|
MLSR = 0x1C ;Last status
|
|
MMDIO = 0x20 ;MDIO control register
|
|
MDIO_WRITE = 0x4000 ;MDIO write
|
|
MDIO_READ = 0x2000 ;MDIO read
|
|
MMRD = 0x24 ;MDIO read data register
|
|
MMWD = 0x28 ;MDIO write data register
|
|
MTD_SA0 = 0x2C ;TX descriptor start address 0
|
|
MTD_SA1 = 0x30 ;TX descriptor start address 1
|
|
MRD_SA0 = 0x34 ;RX descriptor start address 0
|
|
MRD_SA1 = 0x38 ;RX descriptor start address 1
|
|
MISR = 0x3C ;Status register
|
|
MIER = 0x40 ;INT enable register
|
|
MSK_INT = 0x0000 ;Mask off interrupts
|
|
RX_FINISH = 0x0001 ;RX finished
|
|
RX_NO_DESC = 0x0002 ;No RX descriptor available
|
|
RX_FIFO_FULL = 0x0004 ;RX FIFO full
|
|
RX_EARLY = 0x0008 ;RX early
|
|
TX_FINISH = 0x0010 ;TX finished
|
|
TX_EARLY = 0x0080 ;TX early
|
|
EVENT_OVRFL = 0x0100 ;Event counter overflow
|
|
LINK_CHANGED = 0x0200 ;PHY link changed
|
|
ME_CISR = 0x44 ;Event counter INT status
|
|
ME_CIER = 0x48 ;Event counter INT enable
|
|
MR_CNT = 0x50 ;Successfully received packet counter
|
|
ME_CNT0 = 0x52 ;Event counter 0
|
|
ME_CNT1 = 0x54 ;Event counter 1
|
|
ME_CNT2 = 0x56 ;Event counter 2
|
|
ME_CNT3 = 0x58 ;Event counter 3
|
|
MT_CNT = 0x5A ;Successfully transmit packet counter
|
|
ME_CNT4 = 0x5C ;Event counter 4
|
|
MP_CNT = 0x5E ;Pause frame counter register
|
|
MAR0 = 0x60 ;Hash table 0
|
|
MAR1 = 0x62 ;Hash table 1
|
|
MAR2 = 0x64 ;Hash table 2
|
|
MAR3 = 0x66 ;Hash table 3
|
|
MID_0L = 0x68 ;Multicast address MID0 Low
|
|
MID_0M = 0x6A ;Multicast address MID0 Medium
|
|
MID_0H = 0x6C ;Multicast address MID0 High
|
|
MID_1L = 0x70 ;MID1 Low
|
|
MID_1M = 0x72 ;MID1 Medium
|
|
MID_1H = 0x74 ;MID1 High
|
|
MID_2L = 0x78 ;MID2 Low
|
|
MID_2M = 0x7A ;MID2 Medium
|
|
MID_2H = 0x7C ;MID2 High
|
|
MID_3L = 0x80 ;MID3 Low
|
|
MID_3M = 0x82 ;MID3 Medium
|
|
MID_3H = 0x84 ;MID3 High
|
|
PHY_CC = 0x88 ;PHY status change configuration register
|
|
PHY_ST = 0x8A ;PHY status register
|
|
MAC_SM = 0xAC ;MAC status machine
|
|
MAC_ID = 0xBE ;Identifier register
|
|
|
|
MAX_BUF_SIZE = 0x600 ;1536
|
|
|
|
MBCR_DEFAULT = 0x012A ;MAC Bus Control Register
|
|
MCAST_MAX = 3 ;Max number multicast addresses to filter
|
|
|
|
;Descriptor status
|
|
DSC_OWNER_MAC = 0x8000 ;MAC is the owner of this descriptor
|
|
DSC_RX_OK = 0x4000 ;RX was successfull
|
|
DSC_RX_ERR = 0x0800 ;RX PHY error
|
|
DSC_RX_ERR_DRI = 0x0400 ;RX dribble packet
|
|
DSC_RX_ERR_BUF = 0x0200 ;RX length exceeds buffer size
|
|
DSC_RX_ERR_LONG = 0x0100 ;RX length > maximum packet length
|
|
DSC_RX_ERR_RUNT = 0x0080 ;RX packet length < 64 byte
|
|
DSC_RX_ERR_CRC = 0x0040 ;RX CRC error
|
|
DSC_RX_BCAST = 0x0020 ;RX broadcast (no error)
|
|
DSC_RX_MCAST = 0x0010 ;RX multicast (no error)
|
|
DSC_RX_MCH_HIT = 0x0008 ;RX multicast hit in hash table (no error)
|
|
DSC_RX_MIDH_HIT = 0x0004 ;RX MID table hit (no error)
|
|
DSC_RX_IDX_MID_MASK = 3 ;RX mask for the index of matched MIDx
|
|
|
|
;PHY settings
|
|
ICPLUS_PHY_ID = 0x0243
|
|
|
|
RX_INTS = RX_FIFO_FULL or RX_NO_DESC or RX_FINISH
|
|
TX_INTS = TX_FINISH
|
|
INT_MASK = RX_INTS or TX_INTS
|
|
|
|
RX_BUF_LEN equ (8192 << RX_BUF_LEN_IDX) ; Size of the in-memory receive ring.
|
|
|
|
IO_SIZE = 256 ; RDC MAC I/O Size
|
|
MAX_MAC = 2 ; MAX RDC MAC
|
|
|
|
|
|
virtual at 0
|
|
x_head:
|
|
.status dw ? ;0-1
|
|
.len dw ? ;2-3
|
|
.buf dd ? ;4-7
|
|
.ndesc dd ? ;8-B
|
|
.rev1 dd ? ;C-F
|
|
.vbufp dd ? ;10-13
|
|
.vndescp dd ? ;14-17
|
|
.skb_ptr dd ? ;18-1B
|
|
.rev2 dd ? ;1C-1F
|
|
.sizeof:
|
|
end virtual
|
|
|
|
|
|
virtual at ebx
|
|
|
|
device:
|
|
|
|
ETH_DEVICE
|
|
|
|
.io_addr dd ?
|
|
|
|
.cur_rx dw ?
|
|
.cur_tx dw ?
|
|
.last_tx dw ?
|
|
.phy_addr dw ?
|
|
.phy_mode dw ?
|
|
.mcr0 dw ?
|
|
.mcr1 dw ?
|
|
.switch_sig dw ?
|
|
|
|
.pci_bus dd ?
|
|
.pci_dev dd ?
|
|
.irq_line db ?
|
|
|
|
rb 3 ; dword alignment
|
|
|
|
.tx_ring: rb (((x_head.sizeof*TX_RING_SIZE)+32) and 0xfffffff0)
|
|
.rx_ring: rb (((x_head.sizeof*RX_RING_SIZE)+32) and 0xfffffff0)
|
|
|
|
.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 %s driver\n", my_service
|
|
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
|
|
jb .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
|
|
jb .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 al, byte[device.pci_bus]
|
|
jne @f
|
|
cmp ah, byte[device.pci_dev]
|
|
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
|
|
jae .fail
|
|
|
|
allocate_and_clear ebx, device.size, .fail ; Allocate the buffer for device structure
|
|
|
|
; Fill in the direct call addresses into the struct
|
|
|
|
mov [device.reset], reset
|
|
mov [device.transmit], transmit
|
|
mov [device.unload], unload
|
|
mov [device.name], my_service
|
|
|
|
; save the pci bus and device numbers
|
|
|
|
mov eax, [IOCTL.input]
|
|
movzx ecx, byte[eax+1]
|
|
mov [device.pci_bus], ecx
|
|
movzx ecx, byte[eax+2]
|
|
mov [device.pci_dev], ecx
|
|
|
|
; Now, it's time to find the base io addres of the PCI device
|
|
|
|
PCI_find_io
|
|
|
|
; We've found the io address, find IRQ now
|
|
|
|
PCI_find_irq
|
|
|
|
DEBUGF 1,"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]:4
|
|
|
|
; Ok, the eth_device structure is ready, let's probe the device
|
|
cli
|
|
|
|
call probe ; this function will output in eax
|
|
test eax, eax
|
|
jnz .err_sti ; If an error occured, exit
|
|
|
|
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] ;
|
|
|
|
mov [device.type], NET_TYPE_ETH
|
|
call NetRegDev
|
|
sti
|
|
|
|
cmp eax, -1
|
|
je .destroy
|
|
|
|
ret
|
|
|
|
; 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"
|
|
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 1,"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
|
|
|
|
.err_sti:
|
|
sti
|
|
|
|
.err:
|
|
stdcall KernelFree, ebx
|
|
|
|
.fail:
|
|
or eax, -1
|
|
ret
|
|
|
|
;------------------------------------------------------
|
|
endp
|
|
|
|
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
|
|
;; ;;
|
|
;; Actual Hardware dependent code starts here ;;
|
|
;; ;;
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
|
|
|
|
|
|
macro mdio_write reg, val {
|
|
stdcall phy_read, [device.io_addr], [device.phy_addr], reg
|
|
}
|
|
|
|
macro mdio_write reg, val {
|
|
stdcall phy_write, [device.io_addr], [devce.phy_addr], reg, val
|
|
}
|
|
|
|
|
|
align 4
|
|
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
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;
|
|
;; probe: enables the device (if it really is RTL8139)
|
|
;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
probe:
|
|
DEBUGF 2,"Probing R6040 device\n"
|
|
|
|
PCI_make_bus_master
|
|
|
|
; If PHY status change register is still set to zero
|
|
; it means the bootloader didn't initialize it
|
|
|
|
set_io 0
|
|
set_io PHY_CC
|
|
in ax, dx
|
|
test ax, ax
|
|
jnz @f
|
|
mov ax, 0x9F07
|
|
out dx, ax
|
|
@@:
|
|
|
|
call read_mac
|
|
|
|
; Some bootloaders/BIOSes do not initialize MAC address, warn about that
|
|
and eax, 0xFF
|
|
or eax, dword [device.mac]
|
|
test eax, eax
|
|
jnz @f
|
|
DEBUGF 2, "ERROR: MAC address not initialized!\n"
|
|
|
|
@@:
|
|
; Init RDC private data
|
|
mov [device.mcr0], 0x1002
|
|
;mov [private.phy_addr], 1 ; Asper: Only one network card is supported now.
|
|
mov [device.switch_sig], 0
|
|
|
|
; Check the vendor ID on the PHY, if 0xFFFF assume none attached
|
|
stdcall phy_read, 1, 2
|
|
cmp ax, 0xFFFF
|
|
jne @f
|
|
DEBUGF 2, "Failed to detect an attached PHY\n" ;, generating random"
|
|
mov eax, -1
|
|
ret
|
|
@@:
|
|
|
|
; Set MAC address
|
|
call init_mac_regs
|
|
|
|
; Initialize and alloc RX/TX buffers
|
|
call init_txbufs
|
|
call init_rxbufs
|
|
|
|
; Read the PHY ID
|
|
mov [device.phy_mode], 0x8000
|
|
stdcall phy_read, 0, 2
|
|
mov [device.switch_sig], ax
|
|
cmp ax, ICPLUS_PHY_ID
|
|
jne @f
|
|
stdcall phy_write, 29, 31, 0x175C ; Enable registers
|
|
jmp .phy_readen
|
|
@@:
|
|
|
|
; PHY Mode Check
|
|
movzx eax, [device.phy_addr]
|
|
stdcall phy_write, eax, 4, PHY_CAP
|
|
stdcall phy_write, eax, 0, PHY_MODE
|
|
|
|
if PHY_MODE = 0x3100
|
|
call phy_mode_chk
|
|
mov [device.phy_mode], ax
|
|
jmp .phy_readen
|
|
end if
|
|
|
|
if not (PHY_MODE and 0x0100)
|
|
mov [device.phy_mode], 0
|
|
end if
|
|
|
|
.phy_readen:
|
|
|
|
; Set duplex mode
|
|
mov ax, [device.phy_mode]
|
|
or [device.mcr0], ax
|
|
|
|
; improve performance (by RDC guys)
|
|
stdcall phy_read, 30, 17
|
|
or ax, 0x4000
|
|
stdcall phy_write, 30, 17, eax
|
|
|
|
stdcall phy_read, 30, 17
|
|
and ax, not 0x2000
|
|
stdcall phy_write, 30, 17, eax
|
|
|
|
stdcall phy_write, 0, 19, 0x0000
|
|
stdcall phy_write, 0, 30, 0x01F0
|
|
|
|
; Initialize all Mac registers
|
|
call init_mac_regs
|
|
|
|
|
|
|
|
align 4
|
|
reset:
|
|
|
|
DEBUGF 2,"Resetting R6040\n"
|
|
|
|
; Mask off Interrupt
|
|
xor ax, ax
|
|
set_io 0
|
|
set_io MIER
|
|
out dx, ax
|
|
|
|
|
|
; attach int handler
|
|
|
|
movzx eax, [device.irq_line]
|
|
DEBUGF 2,"Attaching int handler to irq %x\n", eax:1
|
|
stdcall AttachIntHandler, eax, int_handler, dword 0
|
|
test eax, eax
|
|
jnz @f
|
|
DEBUGF 2,"\nCould not attach int handler!\n"
|
|
; or eax, -1
|
|
; ret
|
|
@@:
|
|
|
|
|
|
;Reset RDC MAC
|
|
mov eax, MAC_RST
|
|
set_io 0
|
|
set_io MCR1
|
|
out dx, ax
|
|
|
|
mov ecx, 2048 ;limit
|
|
.read:
|
|
in ax, dx
|
|
test ax, 0x1
|
|
jnz @f
|
|
dec ecx
|
|
test ecx, ecx
|
|
jnz .read
|
|
@@:
|
|
;Reset internal state machine
|
|
mov ax, 2
|
|
set_io MAC_SM
|
|
out dx, ax
|
|
|
|
xor ax, ax
|
|
out dx, ax
|
|
|
|
mov esi, 5
|
|
stdcall Sleep
|
|
|
|
;MAC Bus Control Register
|
|
mov ax, MBCR_DEFAULT
|
|
set_io 0
|
|
set_io MBCR
|
|
out dx, ax
|
|
|
|
;Buffer Size Register
|
|
mov ax, MAX_BUF_SIZE
|
|
set_io MR_BSR
|
|
out dx, ax
|
|
|
|
;Write TX ring start address
|
|
lea eax, [device.tx_ring]
|
|
GetRealAddr
|
|
set_io MTD_SA0
|
|
out dx, ax
|
|
shr eax, 16
|
|
set_io MTD_SA1
|
|
out dx, ax
|
|
|
|
;Write RX ring start address
|
|
lea eax, [device.rx_ring]
|
|
GetRealAddr
|
|
set_io MRD_SA0
|
|
out dx, ax
|
|
shr eax, 16
|
|
set_io MRD_SA1
|
|
out dx, ax
|
|
|
|
;Set interrupt waiting time and packet numbers
|
|
xor ax, ax
|
|
set_io MT_ICR
|
|
out dx, ax
|
|
|
|
;Enable interrupts
|
|
mov ax, INT_MASK
|
|
set_io MIER
|
|
out dx, ax
|
|
|
|
;Enable TX and RX
|
|
mov ax, [device.mcr0]
|
|
or ax, 0x0002
|
|
set_io 0
|
|
out dx, ax
|
|
|
|
;Let TX poll the descriptors
|
|
;we may got called by tx_timeout which has left
|
|
;some unset tx buffers
|
|
xor ax, ax
|
|
inc ax
|
|
set_io 0
|
|
set_io MTPR
|
|
out dx, ax
|
|
|
|
; Set the mtu, kernel will be able to send now
|
|
mov [device.mtu], 1514
|
|
|
|
; Set link state to unknown
|
|
mov [device.state], ETH_LINK_UNKOWN
|
|
|
|
DEBUGF 1,"Reset ok\n"
|
|
xor eax, eax
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
init_txbufs:
|
|
|
|
DEBUGF 1,"Init TxBufs\n"
|
|
|
|
lea esi, [device.tx_ring]
|
|
lea eax, [device.tx_ring + x_head.sizeof]
|
|
GetRealAddr
|
|
mov ecx, TX_RING_SIZE
|
|
|
|
.next_desc:
|
|
mov [esi + x_head.ndesc], eax
|
|
mov [esi + x_head.skb_ptr], 0
|
|
mov [esi + x_head.status], DSC_OWNER_MAC
|
|
|
|
add eax, x_head.sizeof
|
|
add esi, x_head.sizeof
|
|
|
|
dec ecx
|
|
jnz .next_desc
|
|
|
|
lea eax, [device.tx_ring]
|
|
GetRealAddr
|
|
mov [device.tx_ring + x_head.sizeof*(TX_RING_SIZE - 1) + x_head.ndesc], eax
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
init_rxbufs:
|
|
|
|
DEBUGF 1,"Init RxBufs\n"
|
|
|
|
lea esi, [device.rx_ring]
|
|
lea eax, [device.rx_ring + x_head.sizeof]
|
|
GetRealAddr
|
|
mov edx, eax
|
|
mov ecx, RX_RING_SIZE
|
|
|
|
.next_desc:
|
|
mov [esi + x_head.ndesc], edx
|
|
|
|
push esi ecx
|
|
stdcall KernelAlloc, MAX_BUF_SIZE
|
|
pop ecx esi
|
|
|
|
mov [esi + x_head.skb_ptr], eax
|
|
GetRealAddr
|
|
mov [esi + x_head.buf], eax
|
|
mov [esi + x_head.status], DSC_OWNER_MAC
|
|
|
|
add edx, x_head.sizeof
|
|
add esi, x_head.sizeof
|
|
|
|
dec ecx
|
|
jnz .next_desc
|
|
|
|
; complete the ring by linking the last to the first
|
|
|
|
lea eax, [device.rx_ring]
|
|
GetRealAddr
|
|
mov [device.rx_ring + x_head.sizeof*(RX_RING_SIZE - 1) + x_head.ndesc], eax
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
phy_mode_chk:
|
|
|
|
DEBUGF 1,"Checking PHY mode\n"
|
|
|
|
; PHY Link Status Check
|
|
movzx eax, [device.phy_addr]
|
|
stdcall phy_read, eax, 1
|
|
test eax, 0x4
|
|
jz .ret_0x8000
|
|
|
|
; PHY Chip Auto-Negotiation Status
|
|
movzx eax, [device.phy_addr]
|
|
stdcall phy_read, eax, 1
|
|
test eax, 0x0020
|
|
jnz .auto_nego
|
|
|
|
; Force Mode
|
|
movzx eax, [device.phy_addr]
|
|
stdcall phy_read, eax, 0
|
|
test eax, 0x100
|
|
jnz .ret_0x8000
|
|
|
|
.auto_nego:
|
|
; Auto Negotiation Mode
|
|
movzx eax, [device.phy_addr]
|
|
stdcall phy_read, eax, 5
|
|
mov ecx, eax
|
|
movzx eax, [device.phy_addr]
|
|
stdcall phy_read, eax, 4
|
|
and eax, ecx
|
|
test eax, 0x140
|
|
jnz .ret_0x8000
|
|
|
|
xor eax, eax
|
|
ret
|
|
|
|
.ret_0x8000:
|
|
mov eax, 0x8000
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Transmit ;;
|
|
;; ;;
|
|
;; In: buffer pointer in [esp+4] ;;
|
|
;; size of buffer in [esp+8] ;;
|
|
;; pointer to device structure in ebx ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
align 4
|
|
transmit:
|
|
DEBUGF 2,"\nTransmitting packet, buffer:%x, size:%u\n", [esp+4], [esp+8]
|
|
mov eax, [esp+4]
|
|
DEBUGF 2,"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
|
|
cmp dword [esp+8], 60
|
|
jb .fail
|
|
|
|
movzx edi, [device.cur_tx]
|
|
shl edi, 5
|
|
add edi, ebx
|
|
add edi, device.tx_ring - ebx
|
|
|
|
DEBUGF 2,"TX buffer status: 0x%x\n", [edi + x_head.status]:4
|
|
|
|
test [edi + x_head.status], DSC_OWNER_MAC ; check if buffer is available
|
|
jnz .wait_to_send
|
|
|
|
.do_send:
|
|
|
|
DEBUGF 2,"Sending now\n"
|
|
|
|
mov eax, [esp+4]
|
|
mov [edi + x_head.skb_ptr], eax
|
|
GetRealAddr
|
|
mov [edi + x_head.buf], eax
|
|
mov ecx, [esp+8]
|
|
mov [edi + x_head.len], cx
|
|
mov [edi + x_head.status], DSC_OWNER_MAC
|
|
|
|
; Trigger the MAC to check the TX descriptor
|
|
mov ax, 0x01
|
|
set_io 0
|
|
set_io MTPR
|
|
out dx, ax
|
|
|
|
inc [device.cur_tx]
|
|
and [device.cur_tx], TX_RING_SIZE - 1
|
|
xor eax, eax
|
|
|
|
; Update stats
|
|
inc [device.packets_tx]
|
|
mov eax, [esp+8]
|
|
add dword [device.bytes_tx], eax
|
|
adc dword [device.bytes_tx + 4], 0
|
|
|
|
ret 8
|
|
|
|
.wait_to_send:
|
|
|
|
DEBUGF 2,"Waiting for TX buffer\n"
|
|
|
|
call GetTimerTicks ; returns in eax
|
|
lea edx, [eax + 100]
|
|
.l2:
|
|
test [edi + x_head.status], DSC_OWNER_MAC
|
|
jz .do_send
|
|
mov esi, 10
|
|
call Sleep
|
|
call GetTimerTicks
|
|
cmp edx, eax
|
|
jb .l2
|
|
|
|
DEBUGF 1,"Send timeout\n"
|
|
xor eax, eax
|
|
dec eax
|
|
.fail:
|
|
DEBUGF 1,"Send failed\n"
|
|
ret 8
|
|
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Interrupt handler ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
int_handler:
|
|
|
|
push ebx esi edi
|
|
|
|
DEBUGF 1,"\n%s int\n", my_service
|
|
|
|
; Find pointer of device wich made IRQ occur
|
|
|
|
mov ecx, [devices]
|
|
test ecx, ecx
|
|
jz .nothing
|
|
mov esi, device_list
|
|
.nextdevice:
|
|
mov ebx, [esi]
|
|
|
|
set_io 0
|
|
set_io MISR
|
|
in ax, dx
|
|
out dx, ax ; send it back to ACK
|
|
test ax, ax
|
|
jnz .got_it
|
|
.continue:
|
|
add esi, 4
|
|
dec ecx
|
|
jnz .nextdevice
|
|
.nothing:
|
|
pop edi esi ebx
|
|
xor eax, eax
|
|
|
|
ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver)
|
|
|
|
|
|
; At this point, test for all possible reasons, and handle accordingly
|
|
|
|
.got_it:
|
|
|
|
DEBUGF 1,"Device: %x Status: %x ", ebx, ax
|
|
|
|
push ax
|
|
|
|
test word [esp], RX_FINISH
|
|
jz .no_RX
|
|
|
|
push ebx
|
|
.more_RX:
|
|
pop ebx
|
|
|
|
; Find the current RX descriptor
|
|
|
|
movzx edx, [device.cur_rx]
|
|
shl edx, 5
|
|
lea edx, [device.rx_ring + edx]
|
|
|
|
; Check the descriptor status
|
|
|
|
mov cx, [edx + x_head.status]
|
|
test cx, DSC_OWNER_MAC
|
|
jnz .no_RX
|
|
|
|
DEBUGF 2,"packet status=0x%x\n", cx
|
|
|
|
test cx, DSC_RX_ERR ; Global error status set
|
|
jnz .no_RX
|
|
|
|
; Packet successfully received
|
|
|
|
movzx ecx, [edx + x_head.len]
|
|
and ecx, 0xFFF
|
|
sub ecx, 4 ; Do not count the CRC
|
|
|
|
; Update stats
|
|
add dword [device.bytes_rx], ecx
|
|
adc dword [device.bytes_rx + 4], 0
|
|
inc dword [device.packets_rx]
|
|
|
|
; Push packet size and pointer, kernel will need it..
|
|
|
|
push ebx
|
|
push .more_RX
|
|
|
|
push ecx
|
|
push [edx + x_head.skb_ptr]
|
|
|
|
DEBUGF 2,"packet ptr=0x%x\n", [edx + x_head.skb_ptr]
|
|
|
|
; reset the RX descriptor
|
|
|
|
push edx
|
|
stdcall KernelAlloc, MAX_BUF_SIZE
|
|
pop edx
|
|
mov [edx + x_head.skb_ptr], eax
|
|
GetRealAddr
|
|
mov [edx + x_head.buf], eax
|
|
mov [edx + x_head.status], DSC_OWNER_MAC
|
|
|
|
; Use next descriptor next time
|
|
|
|
inc [device.cur_rx]
|
|
and [device.cur_rx], RX_RING_SIZE - 1
|
|
|
|
; At last, send packet to kernel
|
|
|
|
jmp Eth_input
|
|
|
|
|
|
.no_RX:
|
|
|
|
test word [esp], TX_FINISH
|
|
jz .no_TX
|
|
|
|
.loop_tx:
|
|
movzx edi, [device.last_tx]
|
|
shl edi, 5
|
|
lea edi, [device.tx_ring + edi]
|
|
|
|
test [edi + x_head.status], DSC_OWNER_MAC
|
|
jnz .no_TX
|
|
|
|
cmp [edi + x_head.skb_ptr], 0
|
|
je .no_TX
|
|
|
|
DEBUGF 2,"Freeing buffer 0x%x\n", [edi + x_head.skb_ptr]
|
|
|
|
push [edi + x_head.skb_ptr]
|
|
mov [edi + x_head.skb_ptr], 0
|
|
call KernelFree
|
|
|
|
inc [device.last_tx]
|
|
and [device.last_tx], TX_RING_SIZE - 1
|
|
|
|
jmp .loop_tx
|
|
|
|
.no_TX:
|
|
pop ax
|
|
|
|
pop edi esi ebx
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
align 4
|
|
init_mac_regs:
|
|
|
|
DEBUGF 2,"initializing MAC regs\n"
|
|
|
|
; MAC operation register
|
|
mov ax, 1
|
|
set_io 0
|
|
set_io MCR1
|
|
out dx, ax
|
|
; Reset MAC
|
|
mov ax, 2
|
|
set_io MAC_SM
|
|
out dx, ax
|
|
; Reset internal state machine
|
|
xor ax, ax
|
|
out dx, ax
|
|
mov esi, 5
|
|
stdcall Sleep
|
|
|
|
call read_mac
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
; Read a word data from PHY Chip
|
|
|
|
align 4
|
|
proc phy_read stdcall, phy_addr:dword, reg:dword
|
|
|
|
DEBUGF 2,"PHY read, addr=0x%x reg=0x%x\n", [phy_addr]:8, [reg]:8
|
|
|
|
mov eax, [phy_addr]
|
|
shl eax, 8
|
|
add eax, [reg]
|
|
add eax, MDIO_READ
|
|
set_io 0
|
|
set_io MMDIO
|
|
out dx, ax
|
|
|
|
;Wait for the read bit to be cleared.
|
|
mov ecx, 2048 ;limit
|
|
.read:
|
|
in ax, dx
|
|
test ax, MDIO_READ
|
|
jz @f
|
|
dec ecx
|
|
jnz .read
|
|
@@:
|
|
|
|
set_io MMRD
|
|
in ax, dx
|
|
and eax, 0xFFFF
|
|
|
|
DEBUGF 2,"PHY read, val=0x%x\n", eax:4
|
|
|
|
ret
|
|
|
|
endp
|
|
|
|
|
|
|
|
|
|
; Write a word data to PHY Chip
|
|
|
|
align 4
|
|
proc phy_write stdcall, phy_addr:dword, reg:dword, val:dword
|
|
|
|
DEBUGF 2,"PHY write, addr=0x%x reg=0x%x val=0x%x\n", [phy_addr]:8, [reg]:8, [val]:8
|
|
|
|
mov eax, [val]
|
|
set_io 0
|
|
set_io MMWD
|
|
out dx, ax
|
|
|
|
;Write the command to the MDIO bus
|
|
|
|
mov eax, [phy_addr]
|
|
shl eax, 8
|
|
add eax, [reg]
|
|
add eax, MDIO_WRITE
|
|
set_io MMDIO
|
|
out dx, ax
|
|
|
|
;Wait for the write bit to be cleared.
|
|
mov ecx, 2048 ;limit
|
|
.write:
|
|
in ax, dx
|
|
test ax, MDIO_WRITE
|
|
jz @f
|
|
dec ecx
|
|
jnz .write
|
|
@@:
|
|
|
|
DEBUGF 2,"PHY write ok\n"
|
|
|
|
ret
|
|
endp
|
|
|
|
|
|
|
|
align 4
|
|
read_mac:
|
|
|
|
DEBUGF 2,"Reading MAC: "
|
|
|
|
mov cx, 3
|
|
lea edi, [device.mac]
|
|
set_io 0
|
|
set_io MID_0L
|
|
.mac:
|
|
in ax, dx
|
|
stosw
|
|
inc dx
|
|
inc dx
|
|
dec cx
|
|
jnz .mac
|
|
|
|
DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[edi-6]:2, [edi-5]:2, [edi-4]:2, [edi-3]:2, [edi-2]:2, [edi-1]:2
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
; End of code
|
|
|
|
section '.data' data readable writable align 16 ; place all uninitialized data place here
|
|
align 4 ; Place all initialised data here
|
|
|
|
devices dd 0
|
|
version dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF)
|
|
my_service db 'R6040',0 ; max 16 chars include zero
|
|
|
|
include_debug_strings ; All data wich FDO uses will be included here
|
|
|
|
device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling
|
|
|