;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;; ;; Distributed under terms of the GNU General Public License ;; ;; ;; ;; AMD PCnet driver for KolibriOS ;; ;; ;; ;; By hidnplayr & clevermouse ;; ;; ;; ;; Based on the PCnet32 driver for MenuetOS, by Jarek Pelczar ;; ;; ;; ;; GNU GENERAL PUBLIC LICENSE ;; ;; Version 2, June 1991 ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; format PE DLL native entry START CURRENT_API = 0x0200 COMPATIBLE_API = 0x0100 API_VERSION = (COMPATIBLE_API shl 16) + CURRENT_API MAX_DEVICES = 16 __DEBUG__ = 1 __DEBUG_LEVEL__ = 2 ; 1 = verbose, 2 = errors only TX_RING_SIZE = 4 RX_RING_SIZE = 4 section '.flat' readable writable executable include '../struct.inc' include '../macros.inc' include '../proc32.inc' include '../fdo.inc' include '../netdrv_pe.inc' PORT_AUI = 0x00 PORT_10BT = 0x01 PORT_GPSI = 0x02 PORT_MII = 0x03 PORT_PORTSEL = 0x03 PORT_ASEL = 0x04 PORT_100 = 0x40 PORT_FD = 0x80 DMA_MASK = 0xffffffff LOG_TX_BUFFERS = 2 ; FIXME LOG_RX_BUFFERS = 2 TX_RING_MOD_MASK = (TX_RING_SIZE-1) TX_RING_LEN_BITS = (LOG_TX_BUFFERS shl 12) RX_RING_MOD_MASK = (RX_RING_SIZE-1) RX_RING_LEN_BITS = (LOG_RX_BUFFERS shl 4) PKT_BUF_SZ = 1544 WIO_RDP = 0x10 WIO_RAP = 0x12 WIO_RESET = 0x14 WIO_BDP = 0x16 DWIO_RDP = 0x10 DWIO_RAP = 0x14 DWIO_RESET = 0x18 DWIO_BDP = 0x1C ; CSR registers CSR_CSR = 0x00 CSR_IAB0 = 0x01 CSR_IAB1 = 0x02 CSR_IMR = 0x03 CSR_TFEAT = 0x04 CSR_EXTCTL1 = 0x05 CSR_DTBLLEN = 0x06 CSR_EXTCTL2 = 0x07 CSR_MAR0 = 0x08 CSR_MAR1 = 0x09 CSR_MAR2 = 0x0A CSR_MAR3 = 0x0B CSR_PAR0 = 0x0C CSR_PAR1 = 0x0D CSR_PAR2 = 0x0E CSR_MODE = 0x0F CSR_RXADDR0 = 0x18 CSR_RXADDR1 = 0x19 CSR_TXADDR0 = 0x1E CSR_TXADDR1 = 0x1F CSR_TXPOLL = 0x2F CSR_RXPOLL = 0x31 CSR_RXRINGLEN = 0x4C CSR_TXRINGLEN = 0x4E CSR_DMACTL = 0x50 CSR_BUSTIMER = 0x52 CSR_MEMERRTIMEO = 0x64 CSR_ONNOWMISC = 0x74 CSR_ADVFEAT = 0x7A CSR_MACCFG = 0x7D CSR_CHIPID0 = 0x58 CSR_CHIPID1 = 0x59 ; Control and Status Register (CSR0) CSR_INIT = 1 shl 0 CSR_START = 1 shl 1 CSR_STOP = 1 shl 2 CSR_TX = 1 shl 3 CSR_TXON = 1 shl 4 CSR_RXON = 1 shl 5 CSR_INTEN = 1 shl 6 CSR_INTR = 1 shl 7 CSR_IDONE = 1 shl 8 CSR_TINT = 1 shl 9 CSR_RINT = 1 shl 10 CSR_MERR = 1 shl 11 CSR_MISS = 1 shl 12 CSR_CERR = 1 shl 13 ; Interrupt masks and deferral control (CSR3) IMR_BSWAP = 0x0004 IMR_ENMBA = 0x0008 ; enable modified backoff alg IMR_DXMT2PD = 0x0010 IMR_LAPPEN = 0x0020 ; lookahead packet processing enb IMR_DXSUFLO = 0x0040 ; disable TX stop on underflow IMR_IDONE = 0x0100 IMR_TINT = 0x0200 IMR_RINT = 0x0400 IMR_MERR = 0x0800 IMR_MISS = 0x1000 IMR = IMR_IDONE ; IMR_TINT + IMR_RINT + IMR_MERR + IMR_MISS ;+ IMR_IDONE ; Test and features control (CSR4) TFEAT_TXSTRTMASK = 0x0004 TFEAT_TXSTRT = 0x0008 TFEAT_RXCCOFLOWM = 0x0010 ; Rx collision counter oflow TFEAT_RXCCOFLOW = 0x0020 TFEAT_UINT = 0x0040 TFEAT_UINTREQ = 0x0080 TFEAT_MISSOFLOWM = 0x0100 TFEAT_MISSOFLOW = 0x0200 TFEAT_STRIP_FCS = 0x0400 TFEAT_PAD_TX = 0x0800 TFEAT_TXDPOLL = 0x1000 TFEAT_DMAPLUS = 0x4000 ; Extended control and interrupt 1 (CSR5) EXTCTL1_SPND = 0x0001 ; suspend EXTCTL1_MPMODE = 0x0002 ; magic packet mode EXTCTL1_MPENB = 0x0004 ; magic packet enable EXTCTL1_MPINTEN = 0x0008 ; magic packet interrupt enable EXTCTL1_MPINT = 0x0010 ; magic packet interrupt EXTCTL1_MPPLBA = 0x0020 ; magic packet phys. logical bcast EXTCTL1_EXDEFEN = 0x0040 ; excessive deferral interrupt enb. EXTCTL1_EXDEF = 0x0080 ; excessive deferral interrupt EXTCTL1_SINTEN = 0x0400 ; system interrupt enable EXTCTL1_SINT = 0x0800 ; system interrupt EXTCTL1_LTINTEN = 0x4000 ; last TX interrupt enb EXTCTL1_TXOKINTD = 0x8000 ; TX OK interrupt disable ; RX/TX descriptor len (CSR6) DTBLLEN_RLEN = 0x0F00 DTBLLEN_TLEN = 0xF000 ; Extended control and interrupt 2 (CSR7) EXTCTL2_MIIPDTINTE = 0x0001 EXTCTL2_MIIPDTINT = 0x0002 EXTCTL2_MCCIINTE = 0x0004 EXTCTL2_MCCIINT = 0x0008 EXTCTL2_MCCINTE = 0x0010 EXTCTL2_MCCINT = 0x0020 EXTCTL2_MAPINTE = 0x0040 EXTCTL2_MAPINT = 0x0080 EXTCTL2_MREINTE = 0x0100 EXTCTL2_MREINT = 0x0200 EXTCTL2_STINTE = 0x0400 EXTCTL2_STINT = 0x0800 EXTCTL2_RXDPOLL = 0x1000 EXTCTL2_RDMD = 0x2000 EXTCTL2_RXFRTG = 0x4000 EXTCTL2_FASTSPNDE = 0x8000 ; Mode (CSR15) MODE_RXD = 0x0001 ; RX disable MODE_TXD = 0x0002 ; TX disable MODE_LOOP = 0x0004 ; loopback enable MODE_TXCRCD = 0x0008 MODE_FORCECOLL = 0x0010 MODE_RETRYD = 0x0020 MODE_INTLOOP = 0x0040 MODE_PORTSEL = 0x0180 MODE_RXVPAD = 0x2000 MODE_RXNOBROAD = 0x4000 MODE_PROMISC = 0x8000 ; BCR (Bus Control Registers) BCR_MMRA = 0x00 ; Master Mode Read Active BCR_MMW = 0x01 ; Master Mode Write Active BCR_MISCCFG = 0x02 BCR_LED0 = 0x04 BCR_LED1 = 0x05 BCR_LED2 = 0x06 BCR_LED3 = 0x07 BCR_DUPLEX = 0x09 BCR_BUSCTL = 0x12 BCR_EECTL = 0x13 BCR_SSTYLE = 0x14 BCR_PCILAT = 0x16 BCR_PCISUBVENID = 0x17 BCR_PCISUBSYSID = 0x18 BCR_SRAMSIZE = 0x19 BCR_SRAMBOUND = 0x1A BCR_SRAMCTL = 0x1B BCR_MIICTL = 0x20 BCR_MIIADDR = 0x21 BCR_MIIDATA = 0x22 BCR_PCIVENID = 0x23 BCR_PCIPCAP = 0x24 BCR_DATA0 = 0x25 BCR_DATA1 = 0x26 BCR_DATA2 = 0x27 BCR_DATA3 = 0x28 BCR_DATA4 = 0x29 BCR_DATA5 = 0x2A BCR_DATA6 = 0x2B BCR_DATA7 = 0x2C BCR_ONNOWPAT0 = 0x2D BCR_ONNOWPAT1 = 0x2E BCR_ONNOWPAT2 = 0x2F BCR_PHYSEL = 0x31 ; RX status register RXSTAT_BPE = 0x0080 ; bus parity error RXSTAT_ENP = 0x0100 ; end of packet RXSTAT_STP = 0x0200 ; start of packet RXSTAT_BUFF = 0x0400 ; buffer error RXSTAT_CRC = 0x0800 ; CRC error RXSTAT_OFLOW = 0x1000 ; rx overrun RXSTAT_FRAM = 0x2000 ; framing error RXSTAT_ERR = 0x4000 ; error summary RXSTAT_OWN = 0x8000 ; TX status register TXSTAT_TRC = 0x0000000F ; transmit retries TXSTAT_RTRY = 0x04000000 ; retry TXSTAT_LCAR = 0x08000000 ; lost carrier TXSTAT_LCOL = 0x10000000 ; late collision TXSTAT_EXDEF = 0x20000000 ; excessive deferrals TXSTAT_UFLOW = 0x40000000 ; transmit underrun TXSTAT_BUFF = 0x80000000 ; buffer error TXCTL_OWN = 0x8000 TXCTL_ERR = 0x4000 ; error summary TXCTL_ADD_FCS = 0x2000 ; add FCS to pkt TXCTL_MORE_LTINT = 0x1000 TXCTL_ONE = 0x0800 TXCTL_DEF = 0x0400 TXCTL_STP = 0x0200 TXCTL_ENP = 0x0100 TXCTL_BPE = 0x0080 TXCTL_MBO = 0x0000F000 TXCTL_BUFSZ = 0x00000FFF MAX_PHYS = 32 struct device ETH_DEVICE rb 0x100-($ and 0xff) ; align 256 ; Pcnet configuration structure mode dw ? tlen_rlen dw ? phys_addr dp ? reserved dw ? filter dq ? rx_ring_phys dd ? tx_ring_phys dd ? ; end of pcnet config struct rb 0x100-($ and 0xff) ; align 256 rx_ring rb RX_RING_SIZE * sizeof.descriptor rb 0x100-($ and 0xff) ; align 256 tx_ring rb TX_RING_SIZE * sizeof.descriptor cur_rx db ? cur_tx db ? last_tx db ? options dd ? full_duplex db ? chip_version dw ? mii db ? ltint db ? dxsuflo db ? fset db ? fdx db ? io_addr dd ? irq_line db ? pci_bus dd ? pci_dev dd ? phy dw ? read_csr dd ? write_csr dd ? read_bcr dd ? write_bcr dd ? read_rap dd ? write_rap dd ? sw_reset dd ? ends struct descriptor base dd ? length dw ? status dw ? msg_length dw ? misc dw ? virtual dd ? ends ;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; proc START ;; ;; ;; ;; (standard driver proc) ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;; proc START c, reason:dword, cmdline:dword cmp [reason], DRV_ENTRY jne .fail DEBUGF 2,"Loading driver\n" invoke RegService, my_service, service_proc ret .fail: xor eax, eax ret endp ;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; proc SERVICE_PROC ;; ;; ;; ;; (standard driver proc) ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;; align 4 proc service_proc stdcall, ioctl:dword mov edx, [ioctl] mov eax, [edx + IOCTL.io_code] ;------------------------------------------------------ cmp eax, 0 ;SRV_GETVERSION jne @F cmp [edx + IOCTL.out_size], 4 jb .fail mov eax, [edx + IOCTL.output] mov [eax], dword API_VERSION xor eax, eax ret ;------------------------------------------------------ @@: cmp eax, 1 ;SRV_HOOK jne .fail cmp [edx + IOCTL.inp_size], 3 ; Data input must be at least 3 bytes jb .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 ecx, [devices] test ecx, ecx jz .firstdevice mov esi, device_list ; mov eax, [edx + IOCTL.input] ; get the pci bus and device numbers mov ax, [eax+1] ; .nextdevice: mov ebx, [esi] cmp al, byte[ebx + device.pci_bus] jne @f cmp ah, byte[ebx + 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, sizeof.device, .fail ; Fill in the direct call addresses into the struct mov [ebx + device.reset], reset mov [ebx + device.transmit], transmit mov [ebx + device.unload], unload mov [ebx + device.name], my_service ; save the pci bus and device numbers mov eax, [edx + IOCTL.input] movzx ecx, byte[eax+1] mov [ebx + device.pci_bus], ecx movzx ecx, byte[eax+2] mov [ebx + device.pci_dev], ecx ; Now, it's time to find the base io addres of the PCI device stdcall PCI_find_io, [ebx + device.pci_bus], [ebx + device.pci_dev] mov [ebx + device.io_addr], eax ; We've found the io address, find IRQ now invoke PciRead8, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.interrupt_line mov [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 ; 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 [ebx + device.type], NET_TYPE_ETH invoke 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" invoke 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 2,"Error, removing all data !\n" invoke 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 (device_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: mov edx, [ebx + device.io_addr] call wio_reset xor ecx, ecx call wio_read_csr cmp eax, 4 jne .try_dwio ; Try Word I/O mov ax, 88 add edx, WIO_RAP out dx, ax nop nop in ax, dx sub edx, WIO_RAP cmp ax, 88 jne .try_dwio call switch_to_wio jmp .L1 .try_dwio: call dwio_reset xor ecx, ecx call dwio_read_csr cmp eax, 4 jne .no_dev ; Try Dword I/O add edx, DWIO_RAP mov eax, 88 out dx, eax nop nop in eax, dx sub edx, DWIO_RAP and eax, 0xffff cmp eax, 88 jne .no_dev call switch_to_dwio jmp .L1 .no_dev: DEBUGF 2,"device not found!\n" mov eax, 1 ret .L1: mov ecx, CSR_CHIPID0 call [ebx + device.read_csr] mov esi, eax shr esi, 12 and ax, 0xfff cmp ax, 3 jne .no_dev mov ecx, CSR_CHIPID1 call [ebx + device.read_csr] shl eax, 4 or eax, esi mov [ebx + device.chip_version], ax mov [ebx + device.fdx], 0 mov [ebx + device.mii], 0 mov [ebx + device.fset], 0 mov [ebx + device.dxsuflo], 0 mov [ebx + device.ltint], 0 cmp ax, 0x2420 je .L2 cmp ax, 0x2430 je .L2 mov [ebx + device.fdx], 1 cmp ax, 0x2621 je .L4 cmp ax, 0x2623 je .L5 cmp ax, 0x2624 je .L6 cmp ax, 0x2625 je .L7 cmp ax, 0x2626 je .L8 cmp ax, 0x2627 je .L9 DEBUGF 1,"Invalid chip rev\n" jmp .no_dev .L2: mov [ebx + device.name], device_l2 jmp .L10 .L4: mov [ebx + device.name], device_l4 ; mov [ebx + device.fdx], 1 jmp .L10 .L5: mov [ebx + device.name], device_l5 ; mov [ebx + device.fdx], 1 mov [ebx + device.mii], 1 mov [ebx + device.fset], 1 mov [ebx + device.ltint], 1 jmp .L10 .L6: mov [ebx + device.name], device_l6 ; mov [ebx + device.fdx], 1 mov [ebx + device.mii], 1 mov [ebx + device.fset], 1 jmp .L10 .L7: mov [ebx + device.name], device_l7 ; mov [ebx + device.fdx], 1 mov [ebx + device.mii], 1 jmp .L10 .L8: mov [ebx + device.name], device_l8 ; mov [ebx + device.fdx], 1 mov ecx, CSR_RXPOLL call dword [ebx + device.read_bcr] call dword [ebx + device.write_bcr] jmp .L10 .L9: mov [ebx + device.name], device_l9 ; mov [ebx + device.fdx], 1 mov [ebx + device.mii], 1 .L10: DEBUGF 1,"device name: %s\n", [ebx + device.name] cmp [ebx + device.fset], 1 jne .L11 mov ecx, BCR_BUSCTL call [ebx + device.read_bcr] or eax, 0x800 call [ebx + device.write_bcr] mov ecx, CSR_DMACTL call [ebx + device.read_csr] ; and eax, 0xc00 ; or eax, 0xc00 mov eax, 0xc00 call [ebx + device.write_csr] mov [ebx + device.dxsuflo],1 mov [ebx + device.ltint],1 .L11: ; Make the device a bus master invoke PciRead32, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.command or al, PCI_CMD_MASTER invoke PciWrite32, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.command, eax mov [ebx + device.options], PORT_ASEL mov [ebx + device.mode], MODE_RXD + MODE_TXD ; disable receive and transmit mov [ebx + device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS) mov dword[ebx + device.filter], 0 mov dword[ebx + device.filter+4], 0 align 4 reset: ; attach int handler movzx eax, [ebx + device.irq_line] DEBUGF 1,"Attaching int handler to irq %x\n", eax:1 invoke AttachIntHandler, eax, int_handler, ebx test eax, eax jnz @f DEBUGF 2,"Could not attach int handler!\n" or eax, -1 ret @@: mov edx, [ebx + device.io_addr] call [ebx + device.sw_reset] ; Switch pcnet32 to 32bit mode mov ecx, BCR_SSTYLE mov eax, 2 call [ebx + device.write_bcr] ; set/reset autoselect bit mov ecx, BCR_MISCCFG call [ebx + device.read_bcr] and eax, not 2 test [ebx + device.options], PORT_ASEL jz @f or eax, 2 @@: call [ebx + device.write_bcr] ; Handle full duplex setting cmp byte [ebx + device.full_duplex], 0 je .duplex_ok mov ecx, BCR_DUPLEX call [ebx + device.read_bcr] and eax, not 3 test [ebx + device.options], PORT_FD jz @f or eax, 1 cmp [ebx + device.options], PORT_FD or PORT_AUI jne .set_duplex or eax, 2 jmp .set_duplex @@: test [ebx + device.options], PORT_ASEL jz .set_duplex cmp [ebx + device.chip_version], 0x2627 jne .set_duplex or eax, 3 .set_duplex: mov ecx, BCR_DUPLEX call [ebx + device.write_bcr] .duplex_ok: ; set/reset GPSI bit in test register mov ecx, 124 call [ebx + device.read_csr] mov ecx, [ebx + device.options] and ecx, PORT_PORTSEL cmp ecx, PORT_GPSI jne @f or eax, 0x10 @@: call [ebx + device.write_csr] cmp [ebx + device.mii], 0 je .L6 test [ebx + device.options], PORT_ASEL jnz .L6 mov ecx, BCR_MIICTL call [ebx + device.read_bcr] and eax, not 0x38 test [ebx + device.options], PORT_FD jz @f or eax, 0x10 @@: test [ebx + device.options], PORT_100 jz @f or eax, 0x08 @@: call [ebx + device.write_bcr] jmp .L9 .L6: test [ebx + device.options], PORT_ASEL jz .L9 mov ecx, BCR_MIICTL DEBUGF 1,"ASEL, enable auto-negotiation\n" call [ebx + device.read_bcr] and eax, not 0x98 or eax, 0x20 call [ebx + device.write_bcr] .L9: cmp [ebx + device.ltint], 0 je @f mov ecx, 5 call [ebx + device.read_csr] or eax, (1 shl 14) call [ebx + device.write_csr] @@: mov eax, [ebx + device.options] and eax, PORT_PORTSEL shl eax, 7 mov [ebx + device.mode], ax mov dword [ebx + device.filter], -1 mov dword [ebx + device.filter+4], -1 ;----------------------------- test [ebx + device.mii], 1 jz .no_mii mov [ebx + device.phy], 0 .mii_loop: mov ecx, MII_PHYSID1 call mdio_read cmp ax, 0xffff je .next DEBUGF 1, "0x%x\n", ax mov ecx, MII_PHYSID2 call mdio_read cmp ax, 0xffff je .next DEBUGF 1, "0x%x\n", ax jmp .got_phy cmp [ebx + device.phy], 31 jne .next mov ax, [ebx + device.chip_version] inc ax and ax, 0xfffe cmp ax, 0x2624 ; 79c971 & 79c972 have phantom phy at id 31 je .got_phy .next: inc [ebx + device.phy] cmp [ebx + device.phy], MAX_PHYS jb .mii_loop DEBUGF 2, "No PHY found!\n" or eax, -1 ret .got_phy: DEBUGF 1, "Found PHY at 0x%x\n", [ebx + device.phy]:4 .no_mii: ;----------------------------------------------- call read_mac lea esi, [ebx + device.mac] lea edi, [ebx + device.phys_addr] movsd movsw call init_ring mov edx, [ebx + device.io_addr] ; init ring destroys edx lea eax, [ebx + device.mode] invoke GetPhysAddr push eax and eax, 0xffff mov ecx, 1 call [ebx + device.write_csr] pop eax shr eax, 16 mov ecx, 2 call [ebx + device.write_csr] mov ecx, 4 mov eax, 0x0915 call [ebx + device.write_csr] ; Set the interrupt mask mov ecx, CSR_IMR mov eax, IMR call [ebx + device.write_csr] ; Initialise the device xor ecx, ecx mov eax, CSR_INIT call [ebx + device.write_csr] mov esi, 100 ; xor ecx, ecx @@: call [ebx + device.read_csr] test ax, CSR_IDONE jnz @f dec esi jnz @r DEBUGF 2,"Initialize timeout!\n" @@: ; Start the device and enable interrupts xor ecx, ecx mov eax, CSR_START + CSR_INTEN call [ebx + device.write_csr] ; Set the mtu, kernel will be able to send now mov [ebx + device.mtu], 1514 ; get link status mov [ebx + device.state], ETH_LINK_UNKNOWN call check_media DEBUGF 1,"reset complete\n" xor eax, eax ret align 4 init_ring: DEBUGF 1,"init ring\n" lea edi, [ebx + device.rx_ring] mov eax, edi invoke GetPhysAddr mov [ebx + device.rx_ring_phys], eax mov ecx, RX_RING_SIZE .rx_init: push ecx invoke KernelAlloc, PKT_BUF_SZ pop ecx mov [edi + descriptor.virtual], eax invoke GetPhysAddr mov [edi + descriptor.base], eax mov [edi + descriptor.length], - PKT_BUF_SZ mov [edi + descriptor.status], RXSTAT_OWN mov dword[edi + descriptor.msg_length], 0 ; also clears misc field add edi, sizeof.descriptor dec ecx jnz .rx_init lea edi, [ebx + device.tx_ring] mov eax, edi invoke GetPhysAddr mov [ebx + device.tx_ring_phys], eax mov ecx, TX_RING_SIZE .tx_init: mov [edi + descriptor.status], 0 add edi, sizeof.descriptor dec ecx jnz .tx_init mov [ebx + device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS) mov [ebx + device.cur_tx], 0 mov [ebx + device.last_tx], 0 mov [ebx + device.cur_rx], 0 ret ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; Transmit ;; ;; ;; ;; In: pointer to device structure in ebx ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; proc transmit stdcall bufferptr, buffersize pushf cli DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [buffersize] mov eax, [bufferptr] 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 [buffersize], 1514 ja .fail cmp [buffersize], 60 jb .fail ; check descriptor lea edi, [ebx + device.tx_ring] movzx eax, [ebx + device.cur_tx] shl eax, 4 add edi, eax test [edi + descriptor.status], TXCTL_OWN jnz .fail ; descriptor is free, use it mov eax, [bufferptr] mov [edi + descriptor.virtual], eax invoke GetPhysAddr mov [edi + descriptor.base], eax ; set length mov eax, [buffersize] neg eax mov [edi + descriptor.length], ax ; put to transfer queue mov [edi + descriptor.status], TXCTL_OWN + TXCTL_STP + TXCTL_ENP ; trigger an immediate send mov edx, [ebx + device.io_addr] xor ecx, ecx ; CSR0 call [ebx + device.read_csr] or eax, CSR_TX call [ebx + device.write_csr] ; get next descriptor 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, ... inc [ebx + device.cur_tx] and [ebx + device.cur_tx], TX_RING_SIZE - 1 ; Update stats inc [ebx + device.packets_tx] mov eax, [buffersize] add dword[ebx + device.bytes_tx], eax adc dword[ebx + device.bytes_tx + 4], 0 .finish: popf xor eax, eax ret .fail: DEBUGF 2, "Send failed\n" invoke KernelFree, [bufferptr] popf or eax, -1 ret endp ;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; Interrupt handler ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;; align 4 int_handler: push ebx esi edi DEBUGF 1,"INT\n" ; find pointer of device wich made IRQ occur mov ecx, [devices] test ecx, ecx jz .nothing mov esi, device_list .nextdevice: mov ebx, [esi] mov edx, [ebx + device.io_addr] push ecx xor ecx, ecx ; CSR0 call [ebx + device.read_csr] ; get IRQ reason call [ebx + device.write_csr] ; write it back to ACK pop ecx and ax, CSR_RINT or CSR_TINT jnz .got_it .continue: add esi, 4 dec ecx jnz .nextdevice .nothing: pop edi esi ebx xor eax, eax ret .got_it: DEBUGF 1,"Device: %x status: %x\n", ebx, eax:4 push ax test ax, CSR_RINT jz .not_receive push ebx .rx_loop: pop ebx movzx eax, [ebx + device.cur_rx] shl eax, 4 lea edi, [ebx + device.rx_ring] add edi, eax ; edi now points to current rx ring entry mov ax, [edi + descriptor.status] DEBUGF 1,"RX packet status: %x\n", eax:4 test ax, RXSTAT_OWN ; If this bit is set, the controller OWN's the packet, if not, we do jnz .not_receive test ax, RXSTAT_ENP jz .not_receive test ax, RXSTAT_STP jz .not_receive movzx ecx, [edi + descriptor.msg_length] ; get packet length in ecx sub ecx, 4 ; We dont need the CRC DEBUGF 1,"Got %u bytes\n", ecx ; Set pointers for ETH_input push ebx push .rx_loop ; return address push ecx ; packet size push [edi + descriptor.virtual] ; packet address ; Update stats add dword[ebx + device.bytes_rx], ecx adc dword[ebx + device.bytes_rx + 4], 0 inc [ebx + device.packets_rx] ; now allocate a new buffer invoke KernelAlloc, PKT_BUF_SZ ; Allocate a buffer for the next packet mov [edi + descriptor.virtual], eax ; set virtual address invoke GetPhysAddr mov [edi + descriptor.base], eax ; and physical address mov [edi + descriptor.status], RXSTAT_OWN ; give it back to PCnet controller inc [ebx + device.cur_rx] ; set next receive descriptor and [ebx + device.cur_rx], RX_RING_SIZE - 1 jmp [Eth_input] .not_receive: pop ax test ax, CSR_TINT jz .not_transmit .tx_loop: lea edi, [ebx + device.tx_ring] movzx eax, [ebx + device.last_tx] shl eax, 4 add edi, eax test [edi + descriptor.status], TXCTL_OWN jnz .not_transmit mov eax, [edi + descriptor.virtual] test eax, eax jz .not_transmit mov [edi + descriptor.virtual], 0 DEBUGF 1,"Removing packet %x from memory\n", eax invoke KernelFree, eax inc [ebx + device.last_tx] and [ebx + device.last_tx], TX_RING_SIZE - 1 jmp .tx_loop .not_transmit: pop edi esi ebx xor eax, eax inc eax 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\n",\ [esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2 mov edx, [ebx + device.io_addr] add dx, 2 xor eax, eax mov ecx, CSR_PAR0 @@: pop ax call [ebx + device.write_csr] inc ecx cmp ecx, CSR_PAR2 jb @r ; Notice this procedure does not ret, but continues to read_mac instead. ;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; Read MAC address ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;; align 4 read_mac: DEBUGF 1,"Reading MAC\n" mov edx, [ebx + device.io_addr] lea edi, [ebx + device.mac] in ax, dx stosw inc dx inc dx in ax, dx stosw inc dx inc dx in ax, dx stosw DEBUGF 1,"MAC = %x-%x-%x-%x-%x-%x\n",\ [ebx + device.mac+0]:2,[ebx + device.mac+1]:2,[ebx + device.mac+2]:2,\ [ebx + device.mac+3]:2,[ebx + device.mac+4]:2,[ebx + device.mac+5]:2 ret align 4 switch_to_wio: DEBUGF 1,"Switching to 16-bit mode\n" mov [ebx + device.read_csr], wio_read_csr mov [ebx + device.write_csr], wio_write_csr mov [ebx + device.read_bcr], wio_read_bcr mov [ebx + device.write_bcr], wio_write_bcr mov [ebx + device.read_rap], wio_read_rap mov [ebx + device.write_rap], wio_write_rap mov [ebx + device.sw_reset], wio_reset ret align 4 switch_to_dwio: DEBUGF 1,"Switching to 32-bit mode\n" mov [ebx + device.read_csr], dwio_read_csr mov [ebx + device.write_csr], dwio_write_csr mov [ebx + device.read_bcr], dwio_read_bcr mov [ebx + device.write_bcr], dwio_write_bcr mov [ebx + device.read_rap], dwio_read_rap mov [ebx + device.write_rap], dwio_write_rap mov [ebx + device.sw_reset], dwio_reset ret ; ecx - index ; return: ; eax - data align 4 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 align 4 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 align 4 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 align 4 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 align 4 wio_read_rap: add edx, WIO_RAP in ax, dx and eax, 0xffff sub edx, WIO_RAP ret ; eax - val align 4 wio_write_rap: add edx, WIO_RAP out dx, ax sub edx, WIO_RAP ret align 4 wio_reset: push eax add edx, WIO_RESET in ax, dx pop eax sub edx, WIO_RESET ret ; ecx - index ; return: ; eax - data align 4 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 align 4 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 align 4 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 align 4 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 align 4 dwio_read_rap: add edx, DWIO_RAP in eax, dx and eax, 0xffff sub edx, DWIO_RAP ret ; eax - val align 4 dwio_write_rap: add edx, DWIO_RAP out dx, eax sub edx, DWIO_RAP ret align 4 dwio_reset: push eax add edx, DWIO_RESET in eax, dx pop eax sub edx, DWIO_RESET ret align 4 mdio_read: and ecx, 0x1f mov ax, [ebx + device.phy] and ax, 0x1f shl ax, 5 or ax, cx mov ecx, BCR_MIIADDR call [ebx + device.write_bcr] mov ecx, BCR_MIIDATA call [ebx + device.read_bcr] ret align 4 mdio_write: push eax and ecx, 0x1f mov ax, [ebx + device.phy] and ax, 0x1f shl ax, 5 or ax, cx mov ecx, BCR_MIIADDR call [ebx + device.write_bcr] pop eax mov ecx, BCR_MIIDATA call [ebx + device.write_bcr] ret align 4 check_media: DEBUGF 1, "check_media\n" test [ebx + device.mii], 1 jnz mii_link_ok mov ecx, BCR_LED0 call [ebx + device.read_bcr] cmp eax, 0xc0 DEBUGF 1, "link status=0x%x\n", ax ret ; End of code data fixups end data include '../peimport.inc' 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 align 4 devices dd 0 device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling