;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; PCnet32 driver for KolibriOS ;;
;; ;;
;; Based on the PCnet32 driver for MenuetOS, by Jarek Pelczar ;;
;; ;;
;; 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
TX_RING_SIZE equ 4
RX_RING_SIZE equ 4
PKT_BUF_SZ equ 1544
include 'proc32.inc'
include 'imports.inc'
include 'fdo.inc'
include 'netdrv.inc'
public START
public service_proc
public version
struc buf_head {
.base dd ?
.length dw ?
.status dw ?
.msg_length dw ?
.misc dw ?
.reserved dd ?
.size:
}
virtual at 0
buf_head buf_head
end virtual
virtual at ebx
device:
ETH_DEVICE
.rx_buffer dd ?
.tx_buffer dd ?
.io_addr dd ?
.irq_line db ?
.pci_bus db ?
.pci_dev db ?
db ? ; align 4
.access_read_csr dd ?
.access_write_csr dd ?
.access_read_bcr dd ?
.access_write_bcr dd ?
.access_read_rap dd ?
.access_write_rap dd ?
.access_reset dd ?
; The following fields up to .tx_ring_phys inclusive form
; initialization block for hardware; do not modify (must be 4-aligned)
.private:
.mode_ dw ?
.tlen_rlen dw ?
.phys_addr dp ?
.reserved dw ?
.filter dq ?
.rx_ring_phys dd ?
.tx_ring_phys dd ?
.rx_ring rb RX_RING_SIZE * buf_head.size
.tx_ring rb TX_RING_SIZE * buf_head.size
.cur_rx db ?
.cur_tx db ?
.dirty_rx dd ?
.dirty_tx dd ?
.tx_full db ?
.options dd ?
.full_duplex db ?
.chip_version dd ?
.mii db ?
.ltint db ?
.dxsuflo db ?
.fset db ?
.fdx db ?
.size = $ - device
end virtual
struc rx_desc_2 { ; Swstyle 2
.rbadr dd ?
.status dd ?
.rfrtag dd ?
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |Address | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 |19-16|15-12|11-0 |
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |CRDA+00h| RBADR[31:0] |
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |CRDA+04h| OWN | ERR |FRAM |OFLO | CRC |BUFF | STP | ENP | BPE | PAM |LAFM | BAM | RES |1111 |BCNT |
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |CRDA+08h| RES | RFRTAG[14:0] |0000 |MCNT |
; +--------+-----+-----------------------------------------------------------------------+-----+-----+
; |CRDA+0Ch| USER SPACE | | |
; +--------+-----------------------------------------------------------------------------+-----+-----+
}
struc rx_desc_3 { ; Swstyle 3
.mcnt dd ?
.status dd ?
.rbadr dd ?
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |Address | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 |22-16|15-12|11-0 |
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |CRDA+00h| RES | RES | RES |0000 |MCNT |
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |CRDA+04h| OWN | ERR |FRAM |OFLO | CRC |BUFF | STP | ENP | BPE | RES |1111 |BCNT |
; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
; |CRDA+08h| RBADR[31:0] |
; +--------+-----------------------------------------------------------------------+
; |CRDA+0Ch| USER SPACE |
; +--------+-----------------------------------------------------------------------+
}
virtual at 0
rx_desc rx_desc_2
end virtual
PORT_AUI equ 0x00
PORT_10BT equ 0x01
PORT_GPSI equ 0x02
PORT_MII equ 0x03
PORT_PORTSEL equ 0x03
PORT_ASEL equ 0x04
PORT_100 equ 0x40
PORT_FD equ 0x80
DMA_MASK equ 0xffffffff
LOG_TX_BUFFERS equ 2
LOG_RX_BUFFERS equ 2
TX_RING_MOD_MASK equ (TX_RING_SIZE-1)
TX_RING_LEN_BITS equ (LOG_TX_BUFFERS shl 12)
RX_RING_MOD_MASK equ (RX_RING_SIZE-1)
RX_RING_LEN_BITS equ (LOG_RX_BUFFERS shl 4)
WIO_RDP equ 0x10
WIO_RAP equ 0x12
WIO_RESET equ 0x14
WIO_BDP equ 0x16
DWIO_RDP equ 0x10
DWIO_RAP equ 0x14
DWIO_RESET equ 0x18
DWIO_BDP equ 0x1C
TOTAL_SIZE equ 0x20
; CSR registers
CSR_CSR equ 0x00
CSR_IAB0 equ 0x01
CSR_IAB1 equ 0x02
CSR_IMR equ 0x03
CSR_TFEAT equ 0x04
CSR_EXTCTL1 equ 0x05
CSR_DTBLLEN equ 0x06
CSR_EXTCTL2 equ 0x07
CSR_MAR0 equ 0x08
CSR_MAR1 equ 0x09
CSR_MAR2 equ 0x0A
CSR_MAR3 equ 0x0B
CSR_PAR0 equ 0x0C
CSR_PAR1 equ 0x0D
CSR_PAR2 equ 0x0E
CSR_MODE equ 0x0F
CSR_RXADDR0 equ 0x18
CSR_RXADDR1 equ 0x19
CSR_TXADDR0 equ 0x1E
CSR_TXADDR1 equ 0x1F
CSR_TXPOLL equ 0x2F
CSR_RXPOLL equ 0x31
CSR_RXRINGLEN equ 0x4C
CSR_TXRINGLEN equ 0x4E
CSR_DMACTL equ 0x50
CSR_BUSTIMER equ 0x52
CSR_MEMERRTIMEO equ 0x64
CSR_ONNOWMISC equ 0x74
CSR_ADVFEAT equ 0x7A
CSR_MACCFG equ 0x7D
CSR_CHIPID0 equ 0x58
CSR_CHIPID1 equ 0x59
; Control and Status Register (CSR0)
CSR_INIT equ 1 shl 0
CSR_START equ 1 shl 1
CSR_STOP equ 1 shl 2
CSR_TX equ 1 shl 3
CSR_TXON equ 1 shl 4
CSR_RXON equ 1 shl 5
CSR_INTEN equ 1 shl 6
CSR_INTR equ 1 shl 7
CSR_IDONE equ 1 shl 8
CSR_TINT equ 1 shl 9
CSR_RINT equ 1 shl 10
CSR_MERR equ 1 shl 11
CSR_MISS equ 1 shl 12
CSR_CERR equ 1 shl 13
; Interrupt masks and deferral control (CSR3)
IMR_BSWAP equ 0x0004
IMR_ENMBA equ 0x0008 ; enable modified backoff alg
IMR_DXMT2PD equ 0x0010
IMR_LAPPEN equ 0x0020 ; lookahead packet processing enb
IMR_DXSUFLO equ 0x0040 ; disable TX stop on underflow
IMR_IDONE equ 0x0100
IMR_TINT equ 0x0200
IMR_RINT equ 0x0400
IMR_MERR equ 0x0800
IMR_MISS equ 0x1000
IMR equ IMR_TINT+IMR_RINT+IMR_IDONE+IMR_MERR+IMR_MISS
; Test and features control (CSR4)
TFEAT_TXSTRTMASK equ 0x0004
TFEAT_TXSTRT equ 0x0008
TFEAT_RXCCOFLOWM equ 0x0010 ; Rx collision counter oflow
TFEAT_RXCCOFLOW equ 0x0020
TFEAT_UINT equ 0x0040
TFEAT_UINTREQ equ 0x0080
TFEAT_MISSOFLOWM equ 0x0100
TFEAT_MISSOFLOW equ 0x0200
TFEAT_STRIP_FCS equ 0x0400
TFEAT_PAD_TX equ 0x0800
TFEAT_TXDPOLL equ 0x1000
TFEAT_DMAPLUS equ 0x4000
; Extended control and interrupt 1 (CSR5)
EXTCTL1_SPND equ 0x0001 ; suspend
EXTCTL1_MPMODE equ 0x0002 ; magic packet mode
EXTCTL1_MPENB equ 0x0004 ; magic packet enable
EXTCTL1_MPINTEN equ 0x0008 ; magic packet interrupt enable
EXTCTL1_MPINT equ 0x0010 ; magic packet interrupt
EXTCTL1_MPPLBA equ 0x0020 ; magic packet phys. logical bcast
EXTCTL1_EXDEFEN equ 0x0040 ; excessive deferral interrupt enb.
EXTCTL1_EXDEF equ 0x0080 ; excessive deferral interrupt
EXTCTL1_SINTEN equ 0x0400 ; system interrupt enable
EXTCTL1_SINT equ 0x0800 ; system interrupt
EXTCTL1_LTINTEN equ 0x4000 ; last TX interrupt enb
EXTCTL1_TXOKINTD equ 0x8000 ; TX OK interrupt disable
; RX/TX descriptor len (CSR6)
DTBLLEN_RLEN equ 0x0F00
DTBLLEN_TLEN equ 0xF000
; Extended control and interrupt 2 (CSR7)
EXTCTL2_MIIPDTINTE equ 0x0001
EXTCTL2_MIIPDTINT equ 0x0002
EXTCTL2_MCCIINTE equ 0x0004
EXTCTL2_MCCIINT equ 0x0008
EXTCTL2_MCCINTE equ 0x0010
EXTCTL2_MCCINT equ 0x0020
EXTCTL2_MAPINTE equ 0x0040
EXTCTL2_MAPINT equ 0x0080
EXTCTL2_MREINTE equ 0x0100
EXTCTL2_MREINT equ 0x0200
EXTCTL2_STINTE equ 0x0400
EXTCTL2_STINT equ 0x0800
EXTCTL2_RXDPOLL equ 0x1000
EXTCTL2_RDMD equ 0x2000
EXTCTL2_RXFRTG equ 0x4000
EXTCTL2_FASTSPNDE equ 0x8000
; Mode (CSR15)
MODE_RXD equ 0x0001 ; RX disable
MODE_TXD equ 0x0002 ; TX disable
MODE_LOOP equ 0x0004 ; loopback enable
MODE_TXCRCD equ 0x0008
MODE_FORCECOLL equ 0x0010
MODE_RETRYD equ 0x0020
MODE_INTLOOP equ 0x0040
MODE_PORTSEL equ 0x0180
MODE_RXVPAD equ 0x2000
MODE_RXNOBROAD equ 0x4000
MODE_PROMISC equ 0x8000
; BCR (Bus Control Registers)
BCR_MMRA equ 0x00 ; Master Mode Read Active
BCR_MMW equ 0x01 ; Master Mode Write Active
BCR_MISCCFG equ 0x02
BCR_LED0 equ 0x04
BCR_LED1 equ 0x05
BCR_LED2 equ 0x06
BCR_LED3 equ 0x07
BCR_DUPLEX equ 0x09
BCR_BUSCTL equ 0x12
BCR_EECTL equ 0x13
BCR_SSTYLE equ 0x14
BCR_PCILAT equ 0x16
BCR_PCISUBVENID equ 0x17
BCR_PCISUBSYSID equ 0x18
BCR_SRAMSIZE equ 0x19
BCR_SRAMBOUND equ 0x1A
BCR_SRAMCTL equ 0x1B
BCR_MIICTL equ 0x20
BCR_MIIADDR equ 0x21
BCR_MIIDATA equ 0x22
BCR_PCIVENID equ 0x23
BCR_PCIPCAP equ 0x24
BCR_DATA0 equ 0x25
BCR_DATA1 equ 0x26
BCR_DATA2 equ 0x27
BCR_DATA3 equ 0x28
BCR_DATA4 equ 0x29
BCR_DATA5 equ 0x2A
BCR_DATA6 equ 0x2B
BCR_DATA7 equ 0x2C
BCR_ONNOWPAT0 equ 0x2D
BCR_ONNOWPAT1 equ 0x2E
BCR_ONNOWPAT2 equ 0x2F
BCR_PHYSEL equ 0x31
; RX status register
RXSTAT_BPE equ 0x0080 ; bus parity error
RXSTAT_ENP equ 0x0100 ; end of packet
RXSTAT_STP equ 0x0200 ; start of packet
RXSTAT_BUFF equ 0x0400 ; buffer error
RXSTAT_CRC equ 0x0800 ; CRC error
RXSTAT_OFLOW equ 0x1000 ; rx overrun
RXSTAT_FRAM equ 0x2000 ; framing error
RXSTAT_ERR equ 0x4000 ; error summary
RXSTAT_OWN equ 0x8000
; TX status register
TXSTAT_TRC equ 0x0000000F ; transmit retries
TXSTAT_RTRY equ 0x04000000 ; retry
TXSTAT_LCAR equ 0x08000000 ; lost carrier
TXSTAT_LCOL equ 0x10000000 ; late collision
TXSTAT_EXDEF equ 0x20000000 ; excessive deferrals
TXSTAT_UFLOW equ 0x40000000 ; transmit underrun
TXSTAT_BUFF equ 0x80000000 ; buffer error
TXCTL_OWN equ 0x80000000
TXCTL_ERR equ 0x40000000 ; error summary
TXCTL_ADD_FCS equ 0x20000000 ; add FCS to pkt
TXCTL_MORE_LTINT equ 0x10000000
TXCTL_ONE equ 0x08000000
TXCTL_DEF equ 0x04000000
TXCTL_STP equ 0x02000000
TXCTL_ENP equ 0x01000000
TXCTL_BPE equ 0x00800000
TXCTL_MBO equ 0x0000F000
TXCTL_BUFSZ equ 0x00000FFF
MAX_ETH_FRAME_SIZE equ 1514
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 1,"Loading PCnet 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 ecx, [devices]
test ecx, ecx
jz .firstdevice
mov esi, device_list
; 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
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 [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 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
allocate_and_clear [device.tx_buffer], (RX_RING_SIZE * PKT_BUF_SZ), .err
allocate_and_clear [device.rx_buffer], (TX_RING_SIZE * PKT_BUF_SZ), .err
; 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 .destroy ; 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 1,"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 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
dec [devices]
.err:
DEBUGF 1,"Error, removing all data !\n"
stdcall KernelFree, [device.rx_buffer]
stdcall KernelFree, [device.tx_buffer]
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
; - 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 a PCnet device)
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 4
probe:
; make the device a bus master
make_bus_master [device.pci_bus], [device.pci_dev]
; create the RX-ring
lea edi, [device.rx_ring]
mov ecx, RX_RING_SIZE
mov eax, [device.rx_buffer]
call GetPgAddr
.rx_init:
mov [edi + buf_head.base], eax
mov [edi + buf_head.length], - PKT_BUF_SZ
mov [edi + buf_head.status], 0x8000
and dword [edi + buf_head.msg_length], 0
and dword [edi + buf_head.reserved], 0
add eax, PKT_BUF_SZ
add edi, buf_head.size
loop .rx_init
lea eax, [device.rx_ring]
GetRealAddr
mov [device.rx_ring_phys], eax
; create the Tx-ring
lea edi, [device.tx_ring]
mov ecx, TX_RING_SIZE
mov eax, [device.tx_buffer]
call GetPgAddr
.tx_init:
mov [edi + buf_head.base], eax
and dword [edi + buf_head.length], 0
and dword [edi + buf_head.msg_length], 0
and dword [edi + buf_head.reserved], 0
add eax, PKT_BUF_SZ
add edi, buf_head.size
loop .tx_init
lea eax, [device.tx_ring]
GetRealAddr
mov [device.tx_ring_phys], eax
mov [device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
; First, we must try to use Word operations
call switch_to_wio
set_io 0
call wio_reset
xor ecx, ecx
call wio_read_csr
cmp eax, 4
jne .try_dwio
; Try Word I/O
mov ax, 88
set_io WIO_RAP
out dx, ax
nop
nop
in ax, dx
set_io 0
cmp ax, 88
jne .try_dwio
DEBUGF 1,"Using WIO\n"
call switch_to_wio
jmp .L1
; If WIO fails, try to use DWIO
.try_dwio:
call dwio_reset
set_io 0
xor ecx, ecx
call dwio_read_csr
cmp eax, 4
jne .no_dev
; Try Dword I/O
set_io DWIO_RAP
mov eax, 88
out dx, eax
nop
nop
in eax, dx
set_io 0
cmp ax, 88
jne .no_dev
DEBUGF 1,"Using DWIO\n"
call switch_to_dwio
jmp .L1
; If both methods fail, something is wrong!
.no_dev:
DEBUGF 1,"PCnet device not found!\n"
mov eax, -1
ret
.L1:
mov ecx, CSR_CHIPID0
call [device.access_read_csr]
mov esi, eax
mov ecx, CSR_CHIPID1
call [device.access_read_csr]
shl eax, 16
or eax, esi
mov ecx, eax
and ecx, 0xfff
cmp ecx, 3
jne .no_dev
shr eax, 12
and eax, 0xffff
mov [device.chip_version], eax
DEBUGF 1,"chip version: %x\n", eax
mov [device.fdx], 0
mov [device.mii], 0
mov [device.fset], 0
mov [device.dxsuflo], 0
mov [device.ltint], 0
cmp eax, 0x2420
je .L2
cmp eax, 0x2430
je .L2
mov [device.fdx], 1
cmp eax, 0x2621
je .L4
cmp eax, 0x2623
je .L5
cmp eax, 0x2624
je .L6
cmp eax, 0x2625
je .L7
cmp eax, 0x2626
je .L8
cmp eax, 0x2627
je .L9
DEBUGF 1,"Invalid chip rev\n"
jmp .no_dev
.L2:
mov [device.name], device_l2
jmp .L10
.L4:
mov [device.name], device_l4
; mov [device.fdx], 1
jmp .L10
.L5:
mov [device.name], device_l5
; mov [device.fdx], 1
mov [device.mii], 1
mov [device.fset], 1
mov [device.ltint], 1
jmp .L10
.L6:
mov [device.name], device_l6
; mov [device.fdx], 1
mov [device.mii], 1
mov [device.fset], 1
jmp .L10
.L7:
mov [device.name], device_l7
; mov [device.fdx], 1
mov [device.mii], 1
jmp .L10
.L8:
mov [device.name], device_l8
; mov [device.fdx], 1
mov ecx, CSR_RXPOLL
call [device.access_read_bcr]
call [device.access_write_bcr]
jmp .L10
.L9:
mov [device.name], device_l9
; mov [device.fdx], 1
mov [device.mii], 1
.L10:
DEBUGF 1,"device name: %s\n",[device.name]
cmp [device.fset], 1
jne .L11
mov ecx, BCR_BUSCTL
call [device.access_read_bcr]
or ax, 0x800
call [device.access_write_bcr]
mov ecx, CSR_DMACTL
call [device.access_read_csr]
mov eax, 0xc00
call [device.access_write_csr]
mov [device.dxsuflo],1
mov [device.ltint],1
.L11:
mov eax, PORT_ASEL ; Auto-select
mov [device.options], eax
mov [device.mode_], word 0x0003
mov [device.tlen_rlen], word (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
mov dword [device.filter], 0
mov dword [device.filter+4], 0
mov eax, IMR
mov ecx, CSR_IMR ; Write interrupt mask
call [device.access_write_csr]
align 4
reset:
DEBUGF 1,"Resetting PCnet device: %x\n", ebx
; attach int handler
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
@@:
set_io 0
call [device.access_reset] ; after a reset, device will be in WIO mode!
; Switch to dword operations
DEBUGF 1,"Switching to 32-bit mode\n"
mov ecx, DWIO_RDP
xor eax, eax
call wio_write_csr
call switch_to_dwio
; Lets find out if we are really in 32-bit mode now..
set_io 0
set_io DWIO_RAP
mov eax, 88
out dx, eax
nop
nop
in eax, dx
set_io 0
cmp ax, 88
je .yes_dwio
call switch_to_wio ; it seems to have failed, reset device again and use wio
set_io 0
call [device.access_reset]
.yes_dwio:
set_io 0
mov ecx, BCR_SSTYLE ; Select Software style 2 ;;;
mov eax, 2
call [device.access_write_bcr]
; set/reset autoselect bit
mov ecx, BCR_MISCCFG
call [device.access_read_bcr]
test [device.options], PORT_ASEL
jnz .L1
and eax, not 2
.L1:
call [device.access_write_bcr]
; Handle full duplex setting
cmp byte [device.full_duplex], 0
je .L2
mov ecx, BCR_DUPLEX
call [device.access_read_bcr]
and eax, not 3
test [device.options], PORT_FD
jz .L3
or eax, 1
cmp [device.options], PORT_FD or PORT_AUI
jne .L4
or eax, 2
jmp .L4
.L3:
test [device.options], PORT_ASEL
jz .L4
cmp [device.chip_version], 0x2627
jne .L4
or eax, 3
.L4:
mov ecx, BCR_DUPLEX
call [device.access_write_bcr]
.L2:
; set/reset GPSI bit in test register
mov ecx, 124
call [device.access_read_csr]
mov ecx, [device.options]
and ecx, PORT_PORTSEL
cmp ecx, PORT_GPSI
jne .L5
or eax, 0x10
.L5:
call [device.access_write_csr]
cmp [device.mii], 0
je .L6
test [device.options], PORT_ASEL
jnz .L6
mov ecx, BCR_MIICTL
call [device.access_read_bcr]
and eax,not 0x38
test [device.options], PORT_FD
jz .L7
or eax, 0x10
.L7:
test [device.options], PORT_100
jz .L8
or eax, 0x08
.L8:
call [device.access_write_bcr]
jmp .L9
.L6:
test [device.options], PORT_ASEL
jz .L9
mov ecx, BCR_MIICTL
DEBUGF 1,"ASEL, enable auto-negotiation\n"
call [device.access_read_bcr]
and eax, not 0x98
or eax, 0x20
call [device.access_write_bcr]
.L9:
cmp [device.ltint],0
je .L10
mov ecx,5
call [device.access_read_csr]
or eax,(1 shl 14)
call [device.access_write_csr]
.L10:
mov eax, [device.options]
and eax, PORT_PORTSEL
shl eax, 7
mov [device.mode_], ax
mov dword [device.filter], -1
mov dword [device.filter+4], -1
call read_mac
lea esi, [device.mac]
lea edi, [device.phys_addr]
movsd
movsw
lea eax, [device.private]
GetRealAddr
push eax
and eax, 0xffff
mov ecx, 1
call [device.access_write_csr]
pop eax
shr eax, 16
mov ecx, 2
call [device.access_write_csr]
mov ecx, 4
mov eax, 0x0915
call [device.access_write_csr]
xor ecx, ecx
mov eax, 1
call [device.access_write_csr]
mov [device.tx_full], 0
mov [device.cur_rx], 0
mov [device.cur_tx], 0
mov [device.dirty_rx], 0
mov [device.dirty_tx], 0
mov ecx, 100
.L11:
push ecx
xor ecx, ecx
call [device.access_read_csr]
pop ecx
push esi
mov esi, 100
call Sleep
pop esi
test ax, 0x100
jnz .L12
loop .L11
.L12:
DEBUGF 1,"Starting up device\n"
xor ecx, ecx
mov eax, 0x0002
call [device.access_write_csr]
xor ecx, ecx
call [device.access_read_csr]
xor ecx, ecx
mov eax, CSR_INTEN or CSR_START
call [device.access_write_csr]
DEBUGF 1,"PCNET reset complete\n"
xor eax, eax
; clear packet/byte counters
lea edi, [device.bytes_tx]
mov ecx, 6
rep stosd
; Set the mtu, kernel will be able to send now
mov [device.mtu], 1514
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
jg .finish ; packet is too long
cmp dword [esp+8], 60
jl .finish ; packet is too short
; check descriptor
movzx eax, [device.cur_tx]
imul edi, eax, PKT_BUF_SZ
shl eax, 4
add edi, [device.tx_buffer]
lea eax, [eax + device.tx_ring]
test byte [eax + buf_head.status + 1], 80h
jnz .nospace
; descriptor is free, copy data
mov esi, [esp+4]
mov ecx, [esp+8]
mov edx, ecx
shr ecx, 2
and edx, 3
rep movsd
mov ecx, edx
rep movsb
; set length
mov ecx, [esp+8]
neg ecx
mov [eax + buf_head.length], cx
; put to transfer queue
mov [eax + buf_head.status], 0x8300
; trigger an immediate send
xor ecx, ecx ; CSR0
call [device.access_read_csr]
or eax, CSR_TX
call [device.access_write_csr]
; get next descriptor 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, ...
inc [device.cur_tx]
and [device.cur_tx], 3
DEBUGF 2," - Packet Sent! "
.finish:
; update statistics
inc [device.packets_tx]
mov ecx, [esp+8]
add dword [device.bytes_tx], ecx
adc dword [device.bytes_tx + 4], 0
DEBUGF 2," - Done!\n"
stdcall KernelFree, [esp+4]
ret 8
.nospace:
DEBUGF 1, 'ERROR: no free transmit descriptors\n'
; todo: maybe somehow notify the kernel about the error?
stdcall KernelFree, [esp+4]
ret 8
;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Interrupt handler ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;
align 4
int_handler:
DEBUGF 1,"IRQ=%x ", 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 esi, device_list
mov ecx, [devices]
test ecx, ecx
jz .abort
.nextdevice:
mov ebx, [esi]
set_io 0
push ecx
xor ecx, ecx ; CSR0
call [device.access_read_csr] ; get IRQ reason
pop ecx
test ax , ax
jnz .got_it
add esi, 4
loop .nextdevice
ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver
.got_it:
DEBUGF 1,"csr=%x\n", ax
;-------------------------------------------------------
; Possible reasons:
; initialization done - ignore
; transmit done - ignore
; packet received - handle
; Clear ALL IRQ reasons.
; N.B. One who wants to handle more than one reason must be ready
; to two or more reasons in one IRQ.
xor ecx, ecx
call [device.access_write_csr]
; Received packet ok?
test ax, CSR_RINT
jz @f
push ax
DEBUGF 1,"packet received!\n"
.receiver_test_loop:
movzx eax, [device.cur_rx]
; and eax, RX_RING_MOD_MASK
mov edi, eax
imul esi, eax, PKT_BUF_SZ ;
add esi, [device.rx_buffer] ; esi now points to rx buffer
shl edi, 4 ; desc * 16 (16 is size of one ring entry)
lea edi, [edi + device.rx_ring] ; edi now points to current rx ring entry
mov cx , [edi + buf_head.status]
test cx , RXSTAT_OWN ; If this bit is set, the controller OWN's the packet, if not, we do
jnz .abort
test cx , RXSTAT_ENP
jz .abort
test cx , RXSTAT_STP
jz .abort
movzx ecx, [edi + buf_head.msg_length] ; get packet length in ecx
sub ecx, 4 ;
push ecx
stdcall KernelAlloc, ecx ; Allocate a buffer to put packet into
pop ecx
test eax, eax ; Test if we allocated succesfully
jz .abort ;
push .receiver_test_loop ;
push ecx ; for eth_receiver
push eax ;
; update statistics
inc [device.packets_rx]
add dword [device.bytes_rx], ecx
adc dword [device.bytes_rx + 4], 0
xchg edi, eax
; copy packet data
shr cx , 1
jnc .nb
movsb
.nb:
shr cx , 1
jnc .nw
movsw
.nw:
rep movsd
; mov word [eax + buf_head.length], PKT_BUF_SZ_NEG
mov word [eax + buf_head.status], RXSTAT_OWN ; Set OWN bit back to 1 (controller may write to tx-buffer again now)
inc [device.cur_rx] ; update descriptor
and [device.cur_rx], 3 ;
DEBUGF 1,"Inserting packet\n"
jmp EthReceiver ; Send the copied packet to kernel
.abort:
pop ax
@@:
test ax, IMR_TINT
jz @f
DEBUGF 1,"Transmit OK!\n"
@@:
test ax, IMR_MISS
jz @f
DEBUGF 1,"We missed a frame! (RX ring full?)\n"
@@:
DEBUGF 1,"done\n"
ret
;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Write MAC address ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;
align 4
write_mac: ; in: mac pushed onto stack (as 3 words)
DEBUGF 1,"Writing MAC: %x-%x-%x-%x-%x-%x",[esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2
set_io 0
; set_io 2
xor eax, eax
mov ecx, CSR_PAR0
@@:
pop ax
call [device.access_write_csr]
DEBUGF 1,"."
inc ecx
cmp ecx, CSR_PAR2
jl @r
DEBUGF 1,"\n"
; Notice this procedure does not ret, but continues to read_mac instead.
;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Read MAC address ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;
read_mac:
DEBUGF 1,"Reading MAC"
set_io 0
set_io 6
@@:
dec dx
dec dx
in ax, dx
push ax
DEBUGF 1,"."
cmp edx, [device.io_addr]
jg @r
DEBUGF 1," %x-%x-%x-%x-%x-%x\n",[esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2
lea edi, [device.mac]
pop ax
stosw
pop ax
stosw
pop ax
stosw
ret
switch_to_wio:
DEBUGF 1,"Switch to WIO\n"
mov [device.access_read_csr], wio_read_csr
mov [device.access_write_csr], wio_write_csr
mov [device.access_read_bcr], wio_read_bcr
mov [device.access_write_bcr], wio_write_bcr
mov [device.access_read_rap], wio_read_rap
mov [device.access_write_rap], wio_write_rap
mov [device.access_reset], wio_reset
ret
switch_to_dwio:
DEBUGF 1,"Switch to DWIO\n"
mov [device.access_read_csr], dwio_read_csr
mov [device.access_write_csr], dwio_write_csr
mov [device.access_read_bcr], dwio_read_bcr
mov [device.access_write_bcr], dwio_write_bcr
mov [device.access_read_rap], dwio_read_rap
mov [device.access_write_rap], dwio_write_rap
mov [device.access_reset], dwio_reset
ret
; ecx - index
; return:
; eax - data
wio_read_csr:
add edx, WIO_RAP
mov ax , cx
out dx , ax
add edx, WIO_RDP - WIO_RAP
in ax , dx
and eax, 0xffff
sub edx, WIO_RDP
ret
; eax - data
; ecx - index
wio_write_csr:
add edx, WIO_RAP
xchg eax, ecx
out dx , ax
xchg eax, ecx
add edx, WIO_RDP - WIO_RAP
out dx , ax
sub edx, WIO_RDP
ret
; ecx - index
; return:
; eax - data
wio_read_bcr:
add edx, WIO_RAP
mov ax , cx
out dx , ax
add edx, WIO_BDP - WIO_RAP
in ax , dx
and eax, 0xffff
sub edx, WIO_BDP
ret
; eax - data
; ecx - index
wio_write_bcr:
add edx, WIO_RAP
xchg eax, ecx
out dx , ax
xchg eax, ecx
add edx, WIO_BDP - WIO_RAP
out dx , ax
sub edx, WIO_BDP
ret
wio_read_rap:
add edx, WIO_RAP
in ax , dx
and eax, 0xffff
sub edx, WIO_RAP
ret
; eax - val
wio_write_rap:
add edx, WIO_RAP
out dx , ax
sub edx, WIO_RAP
ret
wio_reset:
push eax
add edx, WIO_RESET
in ax , dx
pop eax
sub edx, WIO_RESET
ret
; ecx - index
; return:
; eax - data
dwio_read_csr:
add edx, DWIO_RAP
mov eax, ecx
out dx , eax
add edx, DWIO_RDP - DWIO_RAP
in eax, dx
and eax, 0xffff
sub edx, DWIO_RDP
ret
; ecx - index
; eax - data
dwio_write_csr:
add edx, DWIO_RAP
xchg eax, ecx
out dx , eax
add edx, DWIO_RDP - DWIO_RAP
xchg eax, ecx
out dx , eax
sub edx, DWIO_RDP
ret
; ecx - index
; return:
; eax - data
dwio_read_bcr:
add edx, DWIO_RAP
mov eax, ecx
out dx , eax
add edx, DWIO_BDP - DWIO_RAP
in eax, dx
and eax, 0xffff
sub edx, DWIO_BDP
ret
; ecx - index
; eax - data
dwio_write_bcr:
add edx, DWIO_RAP
xchg eax, ecx
out dx , eax
add edx, DWIO_BDP - DWIO_RAP
xchg eax, ecx
out dx , eax
sub edx, DWIO_BDP
ret
dwio_read_rap:
add edx, DWIO_RAP
in eax, dx
and eax, 0xffff
sub edx, DWIO_RAP
ret
; eax - val
dwio_write_rap:
add edx, DWIO_RAP
out dx , eax
sub edx, DWIO_RAP
ret
dwio_reset:
push eax
add edx, DWIO_RESET
in eax, dx
pop eax
sub edx, DWIO_RESET
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 'PCnet',0 ; max 16 chars include zero
device_l2 db "PCnet/PCI 79C970",0
device_l4 db "PCnet/PCI II 79C970A",0
device_l5 db "PCnet/FAST 79C971",0
device_l6 db "PCnet/FAST+ 79C972",0
device_l7 db "PCnet/FAST III 79C973",0
device_l8 db "PCnet/Home 79C978",0
device_l9 db "PCnet/FAST III 79C975",0
options_mapping:
dd PORT_ASEL ; 0 Auto-select
dd PORT_AUI ; 1 BNC/AUI
dd PORT_AUI ; 2 AUI/BNC
dd PORT_ASEL ; 3 not supported
dd PORT_10BT or PORT_FD ; 4 10baseT-FD
dd PORT_ASEL ; 5 not supported
dd PORT_ASEL ; 6 not supported
dd PORT_ASEL ; 7 not supported
dd PORT_ASEL ; 8 not supported
dd PORT_MII ; 9 MII 10baseT
dd PORT_MII or PORT_FD ; 10 MII 10baseT-FD
dd PORT_MII ; 11 MII (autosel)
dd PORT_10BT ; 12 10BaseT
dd PORT_MII or PORT_100 ; 13 MII 100BaseTx
dd PORT_MII or PORT_100 or PORT_FD ; 14 MII 100BaseTx-FD
dd PORT_ASEL ; 15 not supported
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