From 8b09309dd2cbccefa82cc297276ce2cded28679c Mon Sep 17 00:00:00 2001 From: CleverMouse Date: Mon, 26 Oct 2009 11:32:59 +0000 Subject: [PATCH] driver for SIS900 card, ported from trunk git-svn-id: svn://kolibrios.org@1237 a494cfbc-eb01-0410-851d-a64ba20cac60 --- kernel/branches/net/drivers/sis900.asm | 1440 ++++++++++++++++++++++++ 1 file changed, 1440 insertions(+) create mode 100644 kernel/branches/net/drivers/sis900.asm diff --git a/kernel/branches/net/drivers/sis900.asm b/kernel/branches/net/drivers/sis900.asm new file mode 100644 index 0000000000..40604cafac --- /dev/null +++ b/kernel/branches/net/drivers/sis900.asm @@ -0,0 +1,1440 @@ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; ;; +;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;; +;; Distributed under terms of the GNU General Public License ;; +;; ;; +;; Ethernet driver for KolibriOS ;; +;; This is an adaptation of MenuetOS driver with minimal changes. ;; +;; Changes were made by CleverMouse. Original copyright follows. ;; +;; ;; +;; This driver is based on the SIS900 driver from ;; +;; the etherboot 5.0.6 project. The copyright statement is ;; +;; ;; +;; GNU GENERAL PUBLIC LICENSE ;; +;; Version 2, June 1991 ;; +;; ;; +;; remaining parts Copyright 2004 Jason Delozier, ;; +;; cordata51@hotmail.com ;; +;; ;; +;; See file COPYING for details ;; +;; ;; +;; Updates: ;; +;; Revision Look up table and SIS635 Mac Address by Jarek Pelczar ;; +;; ;; +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +; $Revision$ + +format MS COFF + + API_VERSION equ 0x01000100 + + DEBUG equ 1 + __DEBUG__ equ 1 + __DEBUG_LEVEL__ equ 1 + +include 'proc32.inc' +include 'imports.inc' +include 'fdo.inc' + +public START +public version + +struc IOCTL { + .handle dd ? + .io_code dd ? + .input dd ? + .inp_size dd ? + .output dd ? + .out_size dd ? +} + +virtual at 0 + IOCTL IOCTL +end virtual + +NUM_RX_DESC equ 4 ;* Number of RX descriptors * +NUM_TX_DESC equ 1 ;* Number of TX descriptors * +RX_BUFF_SZ equ 1520 ;* Buffer size for each Rx buffer * +TX_BUFF_SZ equ 1516 ;* Buffer size for each Tx buffer * +MAX_ETH_FRAME_SIZE equ 1516 + +TOTAL_BUFFERS_SIZE equ NUM_RX_DESC*RX_BUFF_SZ + NUM_TX_DESC*TX_BUFF_SZ + +struc ETH_DEVICE { +; pointers to procedures + .unload dd ? + .reset dd ? + .transmit dd ? + .set_MAC dd ? + .get_MAC dd ? + .set_mode dd ? + .get_mode dd ? +; status & variables + .bytes_tx dq ? + .bytes_rx dq ? + .packets_tx dd ? + .packets_rx dd ? + .mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..) + .name dd ? + .mac dp ? +; device specific + .io_addr dd ? + .pci_bus db ? + .pci_dev db ? + .irq_line db ? + .cur_rx db ? + .pci_revision db ? + .table_entries: db ? +align 4 + .special_func: dd 0 + .txd: times (3 * NUM_TX_DESC) dd 0 + .rxd: times (3 * NUM_RX_DESC) dd 0 + .size: +} + +; First page is designated to ETH_DEVICE, buffers start from second +ALLOCATION_SIZE = ((device.size+0FFFh) and not 0FFFh) + TOTAL_BUFFERS_SIZE +; Note that buffers must be contiguous in the physical memory; +; because KernelAlloc allocates contiguous physical pages only in 8-pages blocks, +; align ALLOCATION_SIZE up to 8*(page size) = 8000h +ALLOCATION_SIZE = (ALLOCATION_SIZE + 7FFFh) and not 7FFFh + +MAX_DEVICES = 16 ; maximum number of devices which this driver can handle + +virtual at 0 + device ETH_DEVICE +end virtual + + PCI_HEADER_TYPE equ 0x0e ;8 bit + PCI_BASE_ADDRESS_0 equ 0x10 ;32 bit + PCI_BASE_ADDRESS_5 equ 0x24 ;32 bits + PCI_BASE_ADDRESS_SPACE_IO equ 0x01 + PCI_VENDOR_ID equ 0x00 ;16 bit + PCI_BASE_ADDRESS_IO_MASK equ 0xFFFFFFFC + +section '.flat' code readable align 16 + +; Driver entry point - register our service when the driver is loading. +; TODO: add needed operations when unloading +START: + cmp dword [esp+4], 1 + jne .exit + stdcall RegService, my_service, service_proc + ret 4 +.exit: + xor eax, eax + ret 4 + +; Service procedure for the driver - handle all I/O requests for the driver. +; Currently handled requests are: SRV_GETVERSION = 0 and SRV_HOOK = 1. +service_proc: +; 1. Get parameter from the stack: [esp+4] is the first parameter, +; pointer to IOCTL structure. + mov edx, [esp+4] ; edx -> IOCTL +; 2. Get request code and select a handler for the code. + mov eax, [ebx+IOCTL.io_code] + test eax, eax ; check for SRV_GETVERSION + jnz @f +; 3. This is SRV_GETVERSION request, no input, 4 bytes output, API_VERSION. +; 3a. Output size must be at least 4 bytes. + cmp [edx+IOCTL.out_size], 4 + jl .fail +; 3b. Write result to the output buffer. + mov eax, [edx+IOCTL.output] + mov [eax], dword API_VERSION +; 3c. Return success. + xor eax, eax + ret 4 +@@: + dec eax ; check for SRV_HOOK + jnz .fail +; 4. This is SRV_HOOK request, input defines the device to hook, no output. +; 4a. The driver works only with PCI devices, +; so input must be at least 3 bytes long. + cmp [edx + IOCTL.inp_size], 3 + jl .fail +; 4b. First byte of input is bus type, 1 stands for PCI. + mov eax, [edx + IOCTL.input] + cmp byte [eax], 1 + jne .fail +; 4c. Second and third bytes of the input define the device: bus and dev. +; Word in bx holds both bytes. + mov bx, [eax+1] +; 4d. Check if the device was already hooked, +; scan through the list of known devices. + mov esi, DEV_LIST + mov ecx, [NUM_DEV] + test ecx, ecx + jz .firstdevice + .nextdevice: + lodsd + cmp bx, word [eax + device.pci_bus] + je .find_devicenum + loop .nextdevice +; 4e. This device doesn't have its own eth_device structure yet, let's create one + .firstdevice: +; 4f. Check that we have place for new device. + cmp [NUM_DEV], MAX_DEVICES + jge .fail +; 4g. Allocate memory for device descriptor and receive+transmit buffers. + stdcall KernelAlloc, ALLOCATION_SIZE + test eax, eax + jz .fail +; 4h. Zero the structure. + push eax + mov edi, eax + mov ecx, (device.size + 3) shr 2 + xor eax, eax + rep stosd + pop eax +; 4i. Save PCI coordinates, loaded to bx at 4c. + mov word [eax+device.pci_bus], bx + mov ebx, eax ; ebx is always used as a pointer to the structure (in driver, but also in kernel code) +; 4j. Fill in the direct call addresses into the struct. +; Note that get_MAC pointer is filled in initialization by SIS900_probe. + mov dword [ebx+device.reset], sis900_init + mov dword [ebx+device.transmit], transmit +; mov dword [ebx+device.get_MAC], read_mac + mov dword [ebx+device.set_MAC], write_mac + mov dword [ebx+device.unload], unload + mov dword [ebx+device.name], my_service + +; 4k. Now, it's time to find the base io addres of the PCI device +; TODO: implement check if bus and dev exist on this machine + + mov edx, PCI_BASE_ADDRESS_0 +.reg_check: + push edx + stdcall PciRead16, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], edx + pop edx + test al, PCI_BASE_ADDRESS_SPACE_IO + jz .inc_reg + and eax, PCI_BASE_ADDRESS_IO_MASK + jnz .got_io + + .inc_reg: + add edx, 4 + cmp edx, PCI_BASE_ADDRESS_5 + jbe .reg_check + jmp .fail + + .got_io: + mov [ebx+device.io_addr], eax + +; 4l. We've found the io address, find IRQ now + stdcall PciRead8, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x3c + mov byte [ebx+device.irq_line], al + +; 4m. Add new device to the list (required for int_handler). + mov eax, [NUM_DEV] + mov [DEV_LIST+4*eax], ebx + inc [NUM_DEV] + +; 4m. Ok, the eth_device structure is ready, let's probe the device + + call SIS900_probe + test eax, eax + jnz .destroy +; 4n. If device was successfully initialized, register it for the kernel. + + call EthRegDev + cmp eax, -1 + je .destroy + + ret 4 + +; 5. If the device was already loaded, find the device number and return it in eax + + .find_devicenum: + mov ebx, eax + call EthStruc2Dev ; This kernel procedure converts a pointer to device struct in ebx + ; into a device number in edi + mov eax, edi ; Application wants it in eax instead + ret 4 + +; If an error occured, remove all allocated data and exit (returning -1 in eax) + + .destroy: + dec [NUM_DEV] + ; todo: reset device into virgin state + + .err: + stdcall KernelFree, ebx + + + .fail: + xor eax, eax + ret 4 + + +;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; +;; ;; +;; Actual Hardware dependent code starts here ;; +;; ;; +;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; + +unload: + ; TODO: (in this particular order) + ; + ; - Stop the device + ; - Detach int handler + ; - Remove device from local list + ; - call unregister function in kernel + ; - Remove all allocated structures and buffers the card used + + or eax,-1 + +ret + +;******************************************************************** +; Interface +; SIS900_reset +; SIS900_probe +; SIS900_poll +; SIS900_transmit +; +;******************************************************************** +;******************************************************************** +; Comments: +; Known to work with the following SIS900 ethernet cards: +; - Device ID: 0x0900 Vendor ID: 0x1039 Revision: 0x91 +; - Device ID: 0x0900 Vendor ID: 0x1039 Revision: 0x90 +; +; If your card is not listed, try it and let me know if it +; functions properly and it will be aded to the list. If not +; we may be able to add support for it. +; +; ToDo: +; - Enable MII interface for reading speed +; and duplex settings. +; +; - Update Poll routine to support packet fragmentation. +; +; - Add additional support for other sis900 based cards +; +;******************************************************************** + +; comment the next line out if you don't want debug info printed +; on the debug board. This option adds a lot of bytes to the driver +; so it's worth to comment it out. +; SIS900_DEBUG equ 1 + +SIS900_ETH_ALEN equ 6 ;* Size of Ethernet address * +SIS900_ETH_HLEN equ 14 ;* Size of ethernet header * +SIS900_ETH_ZLEN equ 60 ;* Minimum packet length * +SIS900_DSIZE equ 0x00000fff +SIS900_CRC_SIZE equ 4 +SIS900_RFADDR_shift equ 16 +;SIS900 Symbolic offsets to registers. + SIS900_cr equ 0x0 ; Command Register + SIS900_cfg equ 0x4 ; Configuration Register + SIS900_mear equ 0x8 ; EEPROM Access Register + SIS900_ptscr equ 0xc ; PCI Test Control Register + SIS900_isr equ 0x10 ; Interrupt Status Register + SIS900_imr equ 0x14 ; Interrupt Mask Register + SIS900_ier equ 0x18 ; Interrupt Enable Register + SIS900_epar equ 0x18 ; Enhanced PHY Access Register + SIS900_txdp equ 0x20 ; Transmit Descriptor Pointer Register + SIS900_txcfg equ 0x24 ; Transmit Configuration Register + SIS900_rxdp equ 0x30 ; Receive Descriptor Pointer Register + SIS900_rxcfg equ 0x34 ; Receive Configuration Register + SIS900_flctrl equ 0x38 ; Flow Control Register + SIS900_rxlen equ 0x3c ; Receive Packet Length Register + SIS900_rfcr equ 0x48 ; Receive Filter Control Register + SIS900_rfdr equ 0x4C ; Receive Filter Data Register + SIS900_pmctrl equ 0xB0 ; Power Management Control Register + SIS900_pmer equ 0xB4 ; Power Management Wake-up Event Register +;SIS900 Command Register Bits + SIS900_RELOAD equ 0x00000400 + SIS900_ACCESSMODE equ 0x00000200 + SIS900_RESET equ 0x00000100 + SIS900_SWI equ 0x00000080 + SIS900_RxRESET equ 0x00000020 + SIS900_TxRESET equ 0x00000010 + SIS900_RxDIS equ 0x00000008 + SIS900_RxENA equ 0x00000004 + SIS900_TxDIS equ 0x00000002 + SIS900_TxENA equ 0x00000001 +;SIS900 Configuration Register Bits + SIS900_DESCRFMT equ 0x00000100 ; 7016 specific + SIS900_REQALG equ 0x00000080 + SIS900_SB equ 0x00000040 + SIS900_POW equ 0x00000020 + SIS900_EXD equ 0x00000010 + SIS900_PESEL equ 0x00000008 + SIS900_LPM equ 0x00000004 + SIS900_BEM equ 0x00000001 + SIS900_RND_CNT equ 0x00000400 + SIS900_FAIR_BACKOFF equ 0x00000200 + SIS900_EDB_MASTER_EN equ 0x00002000 +;SIS900 Eeprom Access Reigster Bits + SIS900_MDC equ 0x00000040 + SIS900_MDDIR equ 0x00000020 + SIS900_MDIO equ 0x00000010 ; 7016 specific + SIS900_EECS equ 0x00000008 + SIS900_EECLK equ 0x00000004 + SIS900_EEDO equ 0x00000002 + SIS900_EEDI equ 0x00000001 +;SIS900 TX Configuration Register Bits + SIS900_ATP equ 0x10000000 ;Automatic Transmit Padding + SIS900_MLB equ 0x20000000 ;Mac Loopback Enable + SIS900_HBI equ 0x40000000 ;HeartBeat Ignore (Req for full-dup) + SIS900_CSI equ 0x80000000 ;CarrierSenseIgnore (Req for full-du +;SIS900 RX Configuration Register Bits + SIS900_AJAB equ 0x08000000 ; + SIS900_ATX equ 0x10000000 ;Accept Transmit Packets + SIS900_ARP equ 0x40000000 ;accept runt packets (<64bytes) + SIS900_AEP equ 0x80000000 ;accept error packets +;SIS900 Interrupt Reigster Bits + SIS900_WKEVT equ 0x10000000 + SIS900_TxPAUSEEND equ 0x08000000 + SIS900_TxPAUSE equ 0x04000000 + SIS900_TxRCMP equ 0x02000000 + SIS900_RxRCMP equ 0x01000000 + SIS900_DPERR equ 0x00800000 + SIS900_SSERR equ 0x00400000 + SIS900_RMABT equ 0x00200000 + SIS900_RTABT equ 0x00100000 + SIS900_RxSOVR equ 0x00010000 + SIS900_HIBERR equ 0x00008000 + SIS900_SWINT equ 0x00001000 + SIS900_MIBINT equ 0x00000800 + SIS900_TxURN equ 0x00000400 + SIS900_TxIDLE equ 0x00000200 + SIS900_TxERR equ 0x00000100 + SIS900_TxDESC equ 0x00000080 + SIS900_TxOK equ 0x00000040 + SIS900_RxORN equ 0x00000020 + SIS900_RxIDLE equ 0x00000010 + SIS900_RxEARLY equ 0x00000008 + SIS900_RxERR equ 0x00000004 + SIS900_RxDESC equ 0x00000002 + SIS900_RxOK equ 0x00000001 +;SIS900 Interrupt Enable Reigster Bits + SIS900_IE equ 0x00000001 +;SIS900 Revision ID + SIS900B_900_REV equ 0x03 + SIS630A_900_REV equ 0x80 + SIS630E_900_REV equ 0x81 + SIS630S_900_REV equ 0x82 + SIS630EA1_900_REV equ 0x83 + SIS630ET_900_REV equ 0x84 + SIS635A_900_REV equ 0x90 + SIS900_960_REV equ 0x91 +;SIS900 Receive Filter Control Register Bits + SIS900_RFEN equ 0x80000000 + SIS900_RFAAB equ 0x40000000 + SIS900_RFAAM equ 0x20000000 + SIS900_RFAAP equ 0x10000000 + SIS900_RFPromiscuous equ 0x70000000 +;SIS900 Reveive Filter Data Mask + SIS900_RFDAT equ 0x0000FFFF +;SIS900 Eeprom Address + SIS900_EEPROMSignature equ 0x00 + SIS900_EEPROMVendorID equ 0x02 + SIS900_EEPROMDeviceID equ 0x03 + SIS900_EEPROMMACAddr equ 0x08 + SIS900_EEPROMChecksum equ 0x0b +;The EEPROM commands include the alway-set leading bit. +;SIS900 Eeprom Command + SIS900_EEread equ 0x0180 + SIS900_EEwrite equ 0x0140 + SIS900_EEerase equ 0x01C0 + SIS900_EEwriteEnable equ 0x0130 + SIS900_EEwriteDisable equ 0x0100 + SIS900_EEeraseAll equ 0x0120 + SIS900_EEwriteAll equ 0x0110 + SIS900_EEaddrMask equ 0x013F + SIS900_EEcmdShift equ 16 +;For SiS962 or SiS963, request the eeprom software access + SIS900_EEREQ equ 0x00000400 + SIS900_EEDONE equ 0x00000200 + SIS900_EEGNT equ 0x00000100 + +SIS900_pci_revision equ ebx+device.pci_revision +sis900_get_mac_func equ ebx+device.get_MAC +sis900_special_func equ ebx+device.special_func +sis900_table_entries equ ebx+device.table_entries +cur_rx equ ebx+device.cur_rx +sys_msg_board_str equ SysMsgBoardStr +;*************************************************************************** +; Function +; SIS900_probe +; Description +; Searches for an ethernet card, enables it and clears the rx buffer +; If a card was found, it enables the ethernet -> TCPIP link +;not done - still need to probe mii transcievers +;*************************************************************************** +if defined SIS900_DEBUG +SIS900_Debug_Str_Unsupported db 'Sorry your card is unsupported ',13,10,0 +end if +SIS900_probe: +;******Wake Up Chip******* + stdcall PciWrite8, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x40, 0 +;*******Set some PCI Settings********* + call SIS900_adjust_pci_device +;*****Get Card Revision****** + stdcall PciRead8, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x08 + mov [SIS900_pci_revision], al ;save the revision for later use +;****** Look up through the sis900_specific_table + mov esi,sis900_specific_table +.probe_loop: + cmp dword [esi],0 ; Check if we reached end of the list + je .probe_loop_failed + cmp al,[esi] ; Check if revision is OK + je .probe_loop_ok + add esi,12 ; Advance to next entry + jmp .probe_loop +.probe_loop_failed: + jmp SIS900_Probe_Unsupported +;*********Find Get Mac Function********* +.probe_loop_ok: + mov eax,[esi+4] ; Get pointer to "get MAC" function + mov [sis900_get_mac_func],eax + mov eax,[esi+8] ; Get pointer to special initialization fn + mov [sis900_special_func],eax +;******** Get MAC ******** + call dword [sis900_get_mac_func] +;******** Call special initialization fn if requested ******** + cmp dword [sis900_special_func],0 + je .no_special_init + call dword [sis900_special_func] +.no_special_init: +;******** Set table entries ******** + mov al,[SIS900_pci_revision] + cmp al,SIS635A_900_REV + jae .ent16 + cmp al,SIS900B_900_REV + je .ent16 + mov byte [sis900_table_entries],8 + jmp .ent8 +.ent16: + mov byte [sis900_table_entries],16 +.ent8: +;*******Probe for mii transceiver******* +;TODO!!********************* +;*******Initialize Device******* + call sis900_init + ret + +SIS900_Probe_Unsupported: +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Str_Unsupported + call sys_msg_board_str +end if + or eax, -1 + ret +;*************************************************************************** +; Function: sis900_init +; +; Description: resets the ethernet controller chip and various +; data structures required for sending and receiving packets. +; +; Arguments: +; +; returns: none +;not done +;*************************************************************************** +sis900_init: + call SIS900_reset ;Done + call SIS900_init_rxfilter ;Done + call SIS900_init_txd ;Done + call SIS900_init_rxd ;Done + call SIS900_set_rx_mode ;done + call SIS900_set_tx_mode + ;call SIS900_check_mode +; enable interrupts on packet receive + xor eax, eax + inc eax ; eax = 1 = SIS900_RxOK + mov edx, [ebx+device.io_addr] + add edx, SIS900_imr + out dx, eax +; globally enable interrupts + add edx, SIS900_ier-SIS900_imr + out dx, eax ; eax is still 1 + xor eax, eax + ret + +;*************************************************************************** +; Function +; SIS900_reset +; Description +; disables interrupts and soft resets the controller chip +; +;done+ +;*************************************************************************** +if defined SIS900_DEBUG + SIS900_Debug_Reset_Failed db 'Reset Failed ',0 +end if +SIS900_reset: + movzx eax, [ebx+device.irq_line] + stdcall AttachIntHandler, eax, int_handler, 0 + push ebp + mov ebp, [ebx+device.io_addr] ; base address + ;******Disable Interrupts and reset Receive Filter******* + xor eax, eax ; 0 to initialize + lea edx,[ebp+SIS900_ier] + out dx, eax ; Write 0 to location + lea edx,[ebp+SIS900_imr] + out dx, eax ; Write 0 to location + lea edx,[ebp+SIS900_rfcr] + out dx, eax ; Write 0 to location + ;*******Reset Card*********************************************** + lea edx,[ebp+SIS900_cr] + in eax, dx ; Get current Command Register + or eax, SIS900_RESET ; set flags + or eax, SIS900_RxRESET ; + or eax, SIS900_TxRESET ; + out dx, eax ; Write new Command Register + ;*******Wait Loop************************************************ + push ebx + lea edx,[ebp+SIS900_isr] + mov ecx, 0x03000000 ; Status we would like to see from card + mov ebx, 2001 ; only loop 1000 times +SIS900_Wait: + dec ebx ; 1 less loop + jz SIS900_DoneWait_e ; 1000 times yet? + in eax, dx ; move interrup status to eax + and eax, ecx + xor ecx, eax + jz SIS900_DoneWait + jmp SIS900_Wait +SIS900_DoneWait_e: +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Reset_Failed + call sys_msg_board_str +end if +SIS900_DoneWait: + pop ebx + ;*******Set Configuration Register depending on Card Revision******** + lea edx,[ebp+SIS900_cfg] + mov eax, SIS900_PESEL ; Configuration Register Bit + mov cl, [SIS900_pci_revision] ; card revision + cmp cl, SIS635A_900_REV + je SIS900_RevMatch + cmp cl, SIS900B_900_REV ; Check card revision + je SIS900_RevMatch + out dx, eax ; no revision match + jmp SIS900_Reset_Complete +SIS900_RevMatch: ; Revision match + or eax, SIS900_RND_CNT ; Configuration Register Bit + out dx, eax +SIS900_Reset_Complete: + xor eax, eax + pop ebp + ret + +;*************************************************************************** +; Function: sis_init_rxfilter +; +; Description: sets receive filter address to our MAC address +; +; Arguments: +; +; returns: +;done+ +;*************************************************************************** +SIS900_init_rxfilter: + push ebp + mov ebp, [ebx+device.io_addr] ; base address + ;****Get Receive Filter Control Register ******** + lea edx,[ebp+SIS900_rfcr] + in eax, dx ; get register + push eax + ;****disable packet filtering before setting filter******* + mov eax, SIS900_RFEN ;move receive filter enable flag + not eax ;1s complement + and eax, [esp] ;disable receiver + out dx, eax ;set receive disabled + ;********load MAC addr to filter data register********* + xor ecx, ecx +SIS900_RXINT_Mac_Write: + ;high word of eax tells card which mac byte to write + mov eax, ecx + lea edx,[ebp+SIS900_rfcr] + shl eax, 16 ; + out dx, eax ; + lea edx,[ebp+SIS900_rfdr] + mov ax, word [ebx+device.mac+ecx*2] ; Get Mac ID word + out dx, ax ; Send Mac ID + inc cl ; send next word + cmp cl, 3 ; more to send? + jne SIS900_RXINT_Mac_Write + ;********enable packet filitering ***** + pop eax ;old register value + lea edx,[ebp+SIS900_rfcr] + or eax, SIS900_RFEN ;enable filtering + out dx, eax ;set register + pop ebp + ret + +;*************************************************************************** +;* +;* Function: sis_init_txd +;* +;* Description: initializes the Tx descriptor +;* +;* Arguments: +;* +;* returns: +;*done +;*************************************************************************** +SIS900_init_txd: + ;********** initialize TX descriptor ************** + mov [ebx+device.txd], dword 0 ;put link to next descriptor in link field + mov [ebx+device.txd+4],dword 0 ;clear status field + lea eax, [ebx+0x1000] + call GetPgAddr + mov [ebx+device.txd+8], eax ;save address to buffer ptr field + ;*************** load Transmit Descriptor Register *************** + mov edx, [ebx+device.io_addr] ; base address + add edx, SIS900_txdp ; TX Descriptor Pointer + add eax, device.txd - 0x1000 ; First Descriptor + out dx, eax ; move the pointer + ret + +;*************************************************************************** +;* Function: sis_init_rxd +;* +;* Description: initializes the Rx descriptor ring +;* +;* Arguments: +;* +;* Returns: +;*done +;*************************************************************************** +SIS900_init_rxd: + xor ecx,ecx + mov [cur_rx], cl ;Set cuurent rx discriptor to 0 + mov eax, ebx + call GetPgAddr + mov esi, eax + ;******** init RX descriptors ******** +SIS900_init_rxd_Loop: + mov edx, ecx ;current descriptor + imul edx, 12 ; + mov eax, ecx ;determine next link descriptor + inc eax ; + cmp eax, NUM_RX_DESC ; + jne SIS900_init_rxd_Loop_0 ; + xor eax, eax ; +SIS900_init_rxd_Loop_0: ; + imul eax, 12 ; + lea eax, [eax+esi+device.rxd] + mov [ebx+device.rxd+edx], eax ;save link to next descriptor + mov [ebx+device.rxd+edx+4],dword RX_BUFF_SZ ;status bits init to buf size + mov eax, ecx ;find where the buf is located + imul eax,RX_BUFF_SZ ; + lea eax, [eax+esi+0x1000+NUM_TX_DESC*TX_BUFF_SZ] + mov [ebx+device.rxd+edx+8], eax ;save buffer pointer + inc ecx ;next descriptor + cmp ecx, NUM_RX_DESC ; + jne SIS900_init_rxd_Loop ; + ;********* load Receive Descriptor Register with address of first + ; descriptor********* + mov edx, [ebx+device.io_addr] + add edx, SIS900_rxdp + lea eax, [esi+device.rxd] + out dx, eax + ret + +;*************************************************************************** +;* Function: sis900_set_tx_mode +;* +;* Description: +;* sets the transmit mode to allow for full duplex +;* +;* +;* Arguments: +;* +;* Returns: +;* +;* Comments: +;* If you are having problems transmitting packet try changing the +;* Max DMA Burst, Possible settings are as follows: +;* 0x00000000 = 512 bytes +;* 0x00100000 = 4 bytes +;* 0x00200000 = 8 bytes +;* 0x00300000 = 16 bytes +;* 0x00400000 = 32 bytes +;* 0x00500000 = 64 bytes +;* 0x00600000 = 128 bytes +;* 0x00700000 = 256 bytes +;*************************************************************************** +SIS900_set_tx_mode: + push ebp + mov ebp,[ebx+device.io_addr] + lea edx,[ebp+SIS900_cr] + in eax, dx ; Get current Command Register + or eax, SIS900_TxENA ;Enable Receive + out dx, eax + lea edx,[ebp+SIS900_txcfg]; Transmit config Register offset + mov eax, SIS900_ATP ;allow automatic padding + or eax, SIS900_HBI ;allow heartbeat ignore + or eax, SIS900_CSI ;allow carrier sense ignore + or eax, 0x00600000 ;Max DMA Burst + or eax, 0x00000100 ;TX Fill Threshold + or eax, 0x00000020 ;TX Drain Threshold + out dx, eax + pop ebp + ret + +;*************************************************************************** +;* Function: sis900_set_rx_mode +;* +;* Description: +;* sets the receive mode to accept all broadcast packets and packets +;* with our MAC address, and reject all multicast packets. Also allows +;* full-duplex +;* +;* Arguments: +;* +;* Returns: +;* +;* Comments: +;* If you are having problems receiving packet try changing the +;* Max DMA Burst, Possible settings are as follows: +;* 0x00000000 = 512 bytes +;* 0x00100000 = 4 bytes +;* 0x00200000 = 8 bytes +;* 0x00300000 = 16 bytes +;* 0x00400000 = 32 bytes +;* 0x00500000 = 64 bytes +;* 0x00600000 = 128 bytes +;* 0x00700000 = 256 bytes +;*************************************************************************** +SIS900_set_rx_mode: + push ebp + mov ebp,[ebx+device.io_addr] + ;**************update Multicast Hash Table in Receive Filter + xor cl, cl +SIS900_set_rx_mode_Loop: + mov eax, ecx + shl eax, 1 + lea edx,[ebp+SIS900_rfcr] ; Receive Filter Control Reg offset + mov eax, 4 ;determine table entry + add al, cl + shl eax, 16 + out dx, eax ;tell card which entry to modify + lea edx,[ebp+SIS900_rfdr] ; Receive Filter Control Reg offset + mov eax, 0xffff ;entry value + out dx, ax ;write value to table in card + inc cl ;next entry + cmp cl,[sis900_table_entries] ; + jl SIS900_set_rx_mode_Loop + ;*******Set Receive Filter Control Register************* + lea edx,[ebp+SIS900_rfcr] ; Receive Filter Control Register offset + mov eax, SIS900_RFAAB ;accecpt all broadcast packets + or eax, SIS900_RFAAM ;accept all multicast packets + or eax, SIS900_RFAAP ;Accept all packets + or eax, SIS900_RFEN ;enable receiver filter + out dx, eax + ;******Enable Receiver************ + lea edx,[ebp+SIS900_cr] ; Command Register offset + in eax, dx ; Get current Command Register + or eax, SIS900_RxENA ;Enable Receive + out dx, eax + ;*********Set + lea edx,[ebp+SIS900_rxcfg] ; Receive Config Register offset + mov eax, SIS900_ATX ;Accept Transmit Packets + ; (Req for full-duplex and PMD Loopback) + or eax, 0x00600000 ;Max DMA Burst + or eax, 0x00000002 ;RX Drain Threshold, 8X8 bytes or 64bytes + out dx, eax ; + pop ebp + ret + +;*************************************************************************** +; * SIS960_get_mac_addr: - Get MAC address for SiS962 or SiS963 model +; * @pci_dev: the sis900 pci device +; * @net_dev: the net device to get address for +; * +; * SiS962 or SiS963 model, use EEPROM to store MAC address. And EEPROM +; * is shared by +; * LAN and 1394. When access EEPROM, send EEREQ signal to hardware first +; * and wait for EEGNT. If EEGNT is ON, EEPROM is permitted to be access +; * by LAN, otherwise is not. After MAC address is read from EEPROM, send +; * EEDONE signal to refuse EEPROM access by LAN. +; * The EEPROM map of SiS962 or SiS963 is different to SiS900. +; * The signature field in SiS962 or SiS963 spec is meaningless. +; * MAC address is read into @net_dev->dev_addr. +; *done +;* +;* Return 0 is EAX = failure +;*Done+ +;*************************************************************************** +if defined SIS900_DEBUG +SIS900_Debug_Str_GetMac_Start db 'Attempting to get SIS900 Mac ID: ',13,10,0 +SIS900_Debug_Str_GetMac_Failed db 'Access to EEprom Failed',13,10,0 +SIS900_Debug_Str_GetMac_Address db 'Your Mac ID is: ',0 +SIS900_Debug_Str_GetMac_Address2 db 'Your SIS96x Mac ID is: ',0 +end if +SIS960_get_mac_addr: + push ebp + mov ebp,[ebx+device.io_addr] + ;**********Send Request for eeprom access********************* + lea edx,[ebp+SIS900_mear] ; Eeprom access register + mov eax, SIS900_EEREQ ; Request access to eeprom + out dx, eax ; Send request + xor ecx,ecx ; + ;******Loop 4000 times and if access not granted error out***** +SIS96X_Get_Mac_Wait: + in eax, dx ;get eeprom status + and eax, SIS900_EEGNT ;see if eeprom access granted flag is set + jnz SIS900_Got_EEP_Access ;if it is, go access the eeprom + inc ecx ;else keep waiting + cmp ecx, 4000 ;have we tried 4000 times yet? + jl SIS96X_Get_Mac_Wait ;if not ask again + xor eax, eax ;return zero in eax indicating failure + ;*******Debug ********************** +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Failed + call sys_msg_board_str +end if + jmp SIS960_get_mac_addr_done + ;**********EEprom access granted, read MAC from card************* +SIS900_Got_EEP_Access: + ; zero based so 3-16 bit reads will take place + mov ecx, 2 +SIS96x_mac_read_loop: + mov eax, SIS900_EEPROMMACAddr ;Base Mac Address + add eax, ecx ;Current Mac Byte Offset + push ecx + call sis900_read_eeprom ;try to read 16 bits + pop ecx + mov word [ebx+device.mac+ecx*2], ax ;save 16 bits to the MAC ID varible + dec ecx ;one less word to read + jns SIS96x_mac_read_loop ;if more read more + mov eax, 1 ;return non-zero indicating success + ;*******Debug Print MAC ID to debug window********************** +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Address2 + call sys_msg_board_str + lea edx, [ebx+device.mac] + call Create_Mac_String +end if + ;**********Tell EEPROM We are Done Accessing It********************* +SIS960_get_mac_addr_done: + lea edx,[ebp+SIS900_mear] ; Eeprom access register + mov eax, SIS900_EEDONE ;tell eeprom we are done + out dx,eax + pop ebp + ret +;*************************************************************************** +;* sis900_get_mac_addr: - Get MAC address for stand alone SiS900 model +;* @pci_dev: the sis900 pci device +;* @net_dev: the net device to get address for +;* +;* Older SiS900 and friends, use EEPROM to store MAC address. +;* MAC address is read from read_eeprom() into @net_dev->dev_addr. +;* done/untested +;*************************************************************************** +SIS900_get_mac_addr: + ;*******Debug ********************** +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Start + call sys_msg_board_str +end if + ;******** check to see if we have sane EEPROM ******* + mov eax, SIS900_EEPROMSignature ;Base Eeprom Signature + call sis900_read_eeprom ;try to read 16 bits + cmp ax, 0xffff + je SIS900_Bad_Eeprom + cmp ax, 0 + je SIS900_Bad_Eeprom + ;**************Read MacID************** + ; zero based so 3-16 bit reads will take place + mov ecx, 2 +SIS900_mac_read_loop: + mov eax, SIS900_EEPROMMACAddr ;Base Mac Address + add eax, ecx ;Current Mac Byte Offset + push ecx + call sis900_read_eeprom ;try to read 16 bits + pop ecx + mov word [ebx+device.mac+ecx*2], ax ;save 16 bits to the MAC ID storage + dec ecx ;one less word to read + jns SIS900_mac_read_loop ;if more read more + mov eax, 1 ;return non-zero indicating success + ;*******Debug Print MAC ID to debug window********************** +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Address + call sys_msg_board_str + lea edx, [ebx+device.mac] + call Create_Mac_String +end if + ret + +SIS900_Bad_Eeprom: + xor eax, eax + ;*******Debug ********************** +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Failed + call sys_msg_board_str +end if + ret +;*************************************************************************** +;* Get_Mac_SIS635_900_REV: - Get MAC address for model 635 +;* +;* +;*************************************************************************** +Get_Mac_SIS635_900_REV: +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Start + call sys_msg_board_str +end if + push ebp + mov ebp,[ebx+device.io_addr] + lea edx,[ebp+SIS900_rfcr] + in eax,dx + mov edi,eax ; EDI=rfcrSave + lea edx,[ebp+SIS900_cr] + or eax,SIS900_RELOAD + out dx,eax + xor eax,eax + out dx,eax + ; Disable packet filtering before setting filter + lea edx,[ebp+SIS900_rfcr] + mov eax,edi + and edi,not SIS900_RFEN + out dx,eax + ; Load MAC to filter data register + xor ecx,ecx + lea esi,[ebx+device.mac] +.get_mac_loop: + lea edx,[ebp+SIS900_rfcr] + mov eax,ecx + shl eax,SIS900_RFADDR_shift + out dx,eax + lea edx,[ebp+SIS900_rfdr] + in eax,dx + mov [esi],ax + add esi,2 + inc ecx + cmp ecx,3 + jne .get_mac_loop + ; Enable packet filtering + ;lea edx,[ebp+SIS900_rfcr] + ;mov eax,edi + ;or eax,SIS900_RFEN + ;out dx, eax + ;*******Debug Print MAC ID to debug window********************** +if defined SIS900_DEBUG + mov esi,SIS900_Debug_Str_GetMac_Address + call sys_msg_board_str + lea edx, [ebx+device.mac] + call Create_Mac_String +end if + pop ebp + ret +;*************************************************************************** +;* Function: sis900_read_eeprom +;* +;* Description: reads and returns a given location from EEPROM +;* +;* Arguments: eax - location: requested EEPROM location +;* +;* Returns: eax : contents of requested EEPROM location +;* +; Read Serial EEPROM through EEPROM Access Register, Note that location is +; in word (16 bits) unit */ +;done+ +;*************************************************************************** +sis900_read_eeprom: + push esi + push edx + push ecx + push ebx + push ebp + mov ebp,[ebx+device.io_addr] + mov ebx, eax ;location of Mac byte to read + or ebx, SIS900_EEread ; + lea edx,[ebp+SIS900_mear] ; Eeprom access register + xor eax, eax ; start send + out dx,eax + call SIS900_Eeprom_Delay_1 + mov eax, SIS900_EECLK + out dx, eax + call SIS900_Eeprom_Delay_1 + ;************ Shift the read command (9) bits out. ********* + mov cl, 8 ; +sis900_read_eeprom_Send: + mov eax, 1 + shl eax, cl + and eax, ebx + jz SIS900_Read_Eeprom_8 + mov eax, 9 + jmp SIS900_Read_Eeprom_9 +SIS900_Read_Eeprom_8: + mov eax, 8 +SIS900_Read_Eeprom_9: + out dx, eax + call SIS900_Eeprom_Delay_1 + or eax, SIS900_EECLK + out dx, eax + call SIS900_Eeprom_Delay_1 + cmp cl, 0 + je sis900_read_eeprom_Send_Done + dec cl + jmp sis900_read_eeprom_Send + ;********************* +sis900_read_eeprom_Send_Done: + mov eax, SIS900_EECS ; + out dx, eax + call SIS900_Eeprom_Delay_1 + ;********** Read 16-bits of data in *************** + mov cx, 16 ;16 bits to read +sis900_read_eeprom_Send2: + mov eax, SIS900_EECS + out dx, eax + call SIS900_Eeprom_Delay_1 + or eax, SIS900_EECLK + out dx, eax + call SIS900_Eeprom_Delay_1 + in eax, dx + shl ebx, 1 + and eax, SIS900_EEDO + jz SIS900_Read_Eeprom_0 + or ebx, 1 +SIS900_Read_Eeprom_0: + dec cx + jnz sis900_read_eeprom_Send2 + ;************** Terminate the EEPROM access. ************** + xor eax, eax + out dx, eax + call SIS900_Eeprom_Delay_1 + mov eax, SIS900_EECLK + out dx, eax + mov eax, ebx + and eax, 0x0000ffff ;return only 16 bits + pop ebp + pop ebx + pop ecx + pop edx + pop esi + ret +;*************************************************************************** +; Function +; SIS900_Eeprom_Delay_1 +; Description +; +; +; +; +;*************************************************************************** +SIS900_Eeprom_Delay_1: + push eax + in eax, dx + pop eax + ret + +write_mac: + DEBUGF 1,'Setting MAC is not supported for SIS900 card.\n' + add esp, 6 + ret + +;*************************************************************************** +; Function +; int_handler +; Description +; handles received IRQs, which signal received packets +; +; Currently only supports one descriptor per packet, if packet is fragmented +; between multiple descriptors you will lose part of the packet +;*************************************************************************** +if defined SIS900_DEBUG +SIS900_Debug_Pull_Packet_good db 'Good Packet Waiting: ',13,10,0 +SIS900_Debug_Pull_Bad_Packet_Status db 'Bad Packet Waiting: Status',13,10,0 +SIS900_Debug_Pull_Bad_Packet_Size db 'Bad Packet Waiting: Size',13,10,0 +end if +int_handler: +; find pointer of device which made IRQ occur + mov esi, DEV_LIST + mov ecx, [NUM_DEV] + test ecx, ecx + jz .nothing +.nextdevice: + mov ebx, [esi] + mov edx, [ebx+device.io_addr] + add edx, SIS900_isr + in eax, dx ; note that this clears all interrupts + test al, SIS900_RxOK + jnz .got_it + loop .nextdevice +.nothing: + ret +.got_it: + ;**************Get Status ************** + movzx eax, [ebx+device.cur_rx] ;find current discriptor + imul eax, 12 ; + mov ecx, [ebx+device.rxd+eax+4] ; get receive status + ;**************Check Status ************** + ;Check RX_Status to see if packet is waiting + test ecx, 0x80000000 + jnz SIS900_poll_IS_packet + ret + ;**********There is a packet waiting check it for errors************** +SIS900_poll_IS_packet: + test ecx, 0x67C0000 ;see if there are any errors + jnz SIS900_Poll_Error_Status + ;**************Check size of packet************* + and ecx, SIS900_DSIZE ;get packet size minus CRC + cmp ecx, SIS900_CRC_SIZE + ;make sure packet contains data + jle SIS900_Poll_Error_Size + ;*******Copy Good Packet to receive buffer****** + sub ecx, SIS900_CRC_SIZE ;dont want crc + ; update statistics + inc dword [ebx+device.packets_rx] + add dword [ebx+device.bytes_rx], ecx + adc dword [ebx+device.bytes_rx+4], 0 + push ecx + stdcall KernelAlloc, ecx + pop ecx + test eax, eax + jz int_handler.nothing + push ebx + push .return ; return address for EthReceiver + ;**********Continue copying packet**************** + push ecx eax ; save buffer pointer and size for EthReceiver + mov edi, eax + movzx esi, byte [ebx+device.cur_rx] + imul esi, RX_BUFF_SZ + lea esi, [esi+ebx+0x1000+NUM_TX_DESC*TX_BUFF_SZ] + ; first copy dword-wise, divide size by 4 + shr ecx, 2 + rep movsd ; copy the dwords + mov ecx, [esp+4] + and ecx, 3 ; + rep movsb + ;********Debug, tell user we have a good packet************* +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Pull_Packet_good + call sys_msg_board_str +end if + jmp EthReceiver +.return: + pop ebx + jmp SIS900_Poll_Cnt + ;*************Error occured let user know through debug window*********** +SIS900_Poll_Error_Status: +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Pull_Bad_Packet_Status + call sys_msg_board_str +end if + jmp SIS900_Poll_Cnt +SIS900_Poll_Error_Size: +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Pull_Bad_Packet_Size + call sys_msg_board_str +end if + ;*************Increment to next available descriptor************** +SIS900_Poll_Cnt: + ;Reset status, allow ethernet card access to descriptor + movzx eax, [ebx+device.cur_rx] + lea eax, [eax*3] + mov ecx, RX_BUFF_SZ + mov [ebx+device.rxd+eax*4+4], ecx ; + inc [ebx+device.cur_rx] ;get next descriptor + and [ebx+device.cur_rx],NUM_RX_DESC-1 ;only 4 descriptors 0-3 + ;******Enable Receiver************ + mov edx, [ebx+device.io_addr] + add edx, SIS900_cr ; Command Register offset + in eax, dx ; Get current Command Register + or eax, SIS900_RxENA ;Enable Receive + out dx, eax + ret +;*************************************************************************** +; Function +; transmit +; Description +; Transmits a packet of data via the ethernet card +; buffer pointer in [esp] +; size of buffer in [esp+4] +; pointer to device structure in ebx +; +; only one transmit descriptor is used +; +;*************************************************************************** +if defined SIS900_DEBUG +SIS900_Debug_Transmit_Packet db 'Transmitting Packet: ',13,10,0 +SIS900_Debug_Transmit_Packet_Err db 'Transmitting Packet Error: ',13,10,0 +end if +str1 db 'Transmitting packet:',13,10,0 +str2 db ' ',0 +transmit: + cmp dword [esp+4], MAX_ETH_FRAME_SIZE + jg transmit_finish + cmp dword [esp+4], 60 + jl transmit_finish + push ebp + mov ebp, [ebx+device.io_addr] ; Base Address + ;******** Stop the transmitter ******** + lea edx,[ebp+SIS900_cr] ; Command Register offset + in eax, dx ; Get current Command Register + or eax, SIS900_TxDIS ; Disable Transmitter + out dx, eax + ;*******load Transmit Descriptor Register ******* + lea edx,[ebp+SIS900_txdp] + mov eax, ebx + call GetPgAddr + add eax, device.txd + out dx, eax + ;******* copy packet to descriptor******* + mov esi, [esp+4] + lea edi, [ebx+0x1000] + mov ecx, [esp+8] + mov edx, ecx + shr ecx, 2 + and edx, 3 + rep movsd + mov ecx, edx + rep movsb + ;**************set length tag************** + mov ecx, [esp+8] ;restore packet size + and ecx, SIS900_DSIZE ; + inc [ebx+device.packets_tx] + add dword [ebx+device.bytes_tx], ecx + adc dword [ebx+device.bytes_tx+4], 0 + ;**************pad to minimum packet size **************not needed + ;cmp ecx, SIS900_ETH_ZLEN + ;jge SIS900_transmit_Size_Ok + ;push ecx + ;mov ebx, SIS900_ETH_ZLEN + ;sub ebx, ecx + ;mov ecx, ebx + ;rep movsb + ;pop ecx +SIS900_transmit_Size_Ok: + or ecx, 0x80000000 ;card owns descriptor + mov [ebx+device.txd+4], ecx +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Transmit_Packet + call sys_msg_board_str +end if + ;***************restart the transmitter ******** + lea edx,[ebp+SIS900_cr] + in eax, dx ; Get current Command Register + or eax, SIS900_TxENA ; Enable Transmitter + out dx, eax + ;****make sure packet transmitted successfully**** +; mov esi,10 +; call delay_ms + mov eax, [ebx+device.txd+4] + and eax, 0x6200000 + jz SIS900_transmit_OK + ;**************Tell user there was an error through debug window +if defined SIS900_DEBUG + mov esi, SIS900_Debug_Transmit_Packet_Err + call sys_msg_board_str +end if +SIS900_transmit_OK: + pop ebp +transmit_finish: + call KernelFree + add esp, 4 + ret + +;*************************************************************************** +;* Function: Create_Mac_String +;* +;* Description: Converts the 48 bit value to a string for display +;* +;* String Format: XX:XX:XX:XX:XX:XX +;* +;* Arguments: node_addr is location of 48 bit MAC ID +;* +;* Returns: Prints string to general debug window +;* +;* +;done +;*************************************************************************** +if defined SIS900_DEBUG + +SIS900_Char_String db '0','1','2','3','4','5','6','7','8','9' + db 'A','B','C','D','E','F' +Mac_str_build: times 20 db 0 +Create_Mac_String: + pusha + xor ecx, ecx +Create_Mac_String_loop: + mov al,byte [edx+ecx];[node_addr+ecx] + push eax + shr eax, 4 + and eax, 0x0f + mov bl, byte [SIS900_Char_String+eax] + mov [Mac_str_build+ecx*3], bl + pop eax + and eax, 0x0f + mov bl, byte [SIS900_Char_String+eax] + mov [Mac_str_build+1+ecx*3], bl + cmp ecx, 5 + je Create_Mac_String_done + mov bl, ':' + mov [Mac_str_build+2+ecx*3], bl + inc ecx + jmp Create_Mac_String_loop +Create_Mac_String_done: ;Insert CR and Zero Terminate + mov [Mac_str_build+2+ecx*3],byte 13 + mov [Mac_str_build+3+ecx*3],byte 10 + mov [Mac_str_build+4+ecx*3],byte 0 + mov esi, Mac_str_build + call sys_msg_board_str ;Print String to message board + popa + ret +end if +;*************************************************************************** +;* Set device to be a busmaster in case BIOS neglected to do so. +;* Also adjust PCI latency timer to a reasonable value, 64. +;*************************************************************************** +SIS900_adjust_pci_device: + ;*******Get current setting************************ + stdcall PciRead16, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x04 + ;******see if its already set as bus master******** + mov cx, ax + and cx,5 + cmp cx,5 + je SIS900_adjust_pci_device_Latency + ;******Make card a bus master******* + mov cx, ax ;value to write + or cx,5 + stdcall PciWrite16, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x04, ecx + ;******Check latency setting*********** +SIS900_adjust_pci_device_Latency: + ;*******Get current latency setting************************ + stdcall PciRead8, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x0D + ;******see if its aat least 64 clocks******** + cmp al,64 + jge SIS900_adjust_pci_device_Done + ;******Set latency to 32 clocks******* + stdcall PciWrite8, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x0D, 64 + ;******Check latency setting*********** +SIS900_adjust_pci_device_Done: + ret + +; End of code + +align 4 ; Place all initialised data here + +NUM_DEV dd 0 + +sis900_specific_table: +; dd SIS630A_900_REV,Get_Mac_SIS630A_900_REV,0 +; dd SIS630E_900_REV,Get_Mac_SIS630E_900_REV,0 + dd SIS630S_900_REV,Get_Mac_SIS635_900_REV,0 + dd SIS630EA1_900_REV,Get_Mac_SIS635_900_REV,0 + dd SIS630ET_900_REV,Get_Mac_SIS635_900_REV,0;SIS630ET_900_REV_SpecialFN + dd SIS635A_900_REV,Get_Mac_SIS635_900_REV,0 + dd SIS900_960_REV,SIS960_get_mac_addr,0 + dd SIS900B_900_REV,SIS900_get_mac_addr,0 + dd 0,0,0,0 ; end of list + +version dd (5 shl 16) or (API_VERSION and 0xFFFF) +my_service db 'SIS900',0 ; max 16 chars include zero + +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 + +DEV_LIST rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling +