1439 lines
50 KiB
NASM
1439 lines
50 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; Ethernet driver for KolibriOS ;;
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;; This is an adaptation of MenuetOS driver with minimal changes. ;;
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;; Changes were made by CleverMouse. Original copyright follows. ;;
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;; ;;
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;; This driver is based on the SIS900 driver from ;;
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;; the etherboot 5.0.6 project. The copyright statement is ;;
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;; ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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;; Version 2, June 1991 ;;
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;; ;;
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;; remaining parts Copyright 2004 Jason Delozier, ;;
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;; cordata51@hotmail.com ;;
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;; ;;
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;; See file COPYING for details ;;
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;; ;;
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;; Updates: ;;
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;; Revision Look up table and SIS635 Mac Address by Jarek Pelczar ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; $Revision$
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format MS COFF
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API_VERSION equ 0x01000100
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DEBUG equ 1
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__DEBUG__ equ 1
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__DEBUG_LEVEL__ equ 1
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include 'proc32.inc'
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include 'imports.inc'
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include 'fdo.inc'
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public START
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public version
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struc IOCTL {
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.handle dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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}
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virtual at 0
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IOCTL IOCTL
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end virtual
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NUM_RX_DESC equ 4 ;* Number of RX descriptors *
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NUM_TX_DESC equ 1 ;* Number of TX descriptors *
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RX_BUFF_SZ equ 1520 ;* Buffer size for each Rx buffer *
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TX_BUFF_SZ equ 1516 ;* Buffer size for each Tx buffer *
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MAX_ETH_FRAME_SIZE equ 1516
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TOTAL_BUFFERS_SIZE equ NUM_RX_DESC*RX_BUFF_SZ + NUM_TX_DESC*TX_BUFF_SZ
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struc ETH_DEVICE {
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; pointers to procedures
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.unload dd ?
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.reset dd ?
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.transmit dd ?
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.set_MAC dd ?
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.get_MAC dd ?
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.set_mode dd ?
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.get_mode dd ?
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; status & variables
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.bytes_tx dq ?
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.bytes_rx dq ?
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.packets_tx dd ?
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.packets_rx dd ?
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.mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..)
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.name dd ?
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.mac dp ?
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; device specific
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.io_addr dd ?
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.pci_bus db ?
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.pci_dev db ?
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.irq_line db ?
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.cur_rx db ?
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.pci_revision db ?
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.table_entries: db ?
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align 4
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.special_func: dd 0
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.txd: times (3 * NUM_TX_DESC) dd 0
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.rxd: times (3 * NUM_RX_DESC) dd 0
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.size:
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}
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; First page is designated to ETH_DEVICE, buffers start from second
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ALLOCATION_SIZE = ((device.size+0FFFh) and not 0FFFh) + TOTAL_BUFFERS_SIZE
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; Note that buffers must be contiguous in the physical memory;
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; because KernelAlloc allocates contiguous physical pages only in 8-pages blocks,
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; align ALLOCATION_SIZE up to 8*(page size) = 8000h
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ALLOCATION_SIZE = (ALLOCATION_SIZE + 7FFFh) and not 7FFFh
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MAX_DEVICES = 16 ; maximum number of devices which this driver can handle
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virtual at 0
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device ETH_DEVICE
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end virtual
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PCI_HEADER_TYPE equ 0x0e ;8 bit
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PCI_BASE_ADDRESS_0 equ 0x10 ;32 bit
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PCI_BASE_ADDRESS_5 equ 0x24 ;32 bits
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PCI_BASE_ADDRESS_SPACE_IO equ 0x01
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PCI_VENDOR_ID equ 0x00 ;16 bit
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PCI_BASE_ADDRESS_IO_MASK equ 0xFFFFFFFC
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section '.flat' code readable align 16
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; Driver entry point - register our service when the driver is loading.
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; TODO: add needed operations when unloading
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START:
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cmp dword [esp+4], 1
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jne .exit
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stdcall RegService, my_service, service_proc
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ret 4
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.exit:
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xor eax, eax
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ret 4
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; Service procedure for the driver - handle all I/O requests for the driver.
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; Currently handled requests are: SRV_GETVERSION = 0 and SRV_HOOK = 1.
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service_proc:
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; 1. Get parameter from the stack: [esp+4] is the first parameter,
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; pointer to IOCTL structure.
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mov edx, [esp+4] ; edx -> IOCTL
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; 2. Get request code and select a handler for the code.
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mov eax, [edx+IOCTL.io_code]
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test eax, eax ; check for SRV_GETVERSION
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jnz @f
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; 3. This is SRV_GETVERSION request, no input, 4 bytes output, API_VERSION.
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; 3a. Output size must be at least 4 bytes.
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cmp [edx+IOCTL.out_size], 4
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jl .fail
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; 3b. Write result to the output buffer.
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mov eax, [edx+IOCTL.output]
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mov [eax], dword API_VERSION
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; 3c. Return success.
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xor eax, eax
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ret 4
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@@:
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dec eax ; check for SRV_HOOK
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jnz .fail
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; 4. This is SRV_HOOK request, input defines the device to hook, no output.
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; 4a. The driver works only with PCI devices,
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; so input must be at least 3 bytes long.
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cmp [edx + IOCTL.inp_size], 3
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jl .fail
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; 4b. First byte of input is bus type, 1 stands for PCI.
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mov eax, [edx + IOCTL.input]
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cmp byte [eax], 1
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jne .fail
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; 4c. Second and third bytes of the input define the device: bus and dev.
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; Word in bx holds both bytes.
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mov bx, [eax+1]
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; 4d. Check if the device was already hooked,
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; scan through the list of known devices.
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mov esi, DEV_LIST
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mov ecx, [NUM_DEV]
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test ecx, ecx
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jz .firstdevice
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.nextdevice:
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lodsd
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cmp bx, word [eax + device.pci_bus]
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je .find_devicenum
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loop .nextdevice
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; 4e. This device doesn't have its own eth_device structure yet, let's create one
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.firstdevice:
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; 4f. Check that we have place for new device.
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cmp [NUM_DEV], MAX_DEVICES
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jge .fail
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; 4g. Allocate memory for device descriptor and receive+transmit buffers.
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stdcall KernelAlloc, ALLOCATION_SIZE
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test eax, eax
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jz .fail
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; 4h. Zero the structure.
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push eax
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mov edi, eax
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mov ecx, (device.size + 3) shr 2
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xor eax, eax
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rep stosd
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pop eax
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; 4i. Save PCI coordinates, loaded to bx at 4c.
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mov word [eax+device.pci_bus], bx
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mov ebx, eax ; ebx is always used as a pointer to the structure (in driver, but also in kernel code)
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; 4j. Fill in the direct call addresses into the struct.
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; Note that get_MAC pointer is filled in initialization by SIS900_probe.
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mov dword [ebx+device.reset], sis900_init
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mov dword [ebx+device.transmit], transmit
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; mov dword [ebx+device.get_MAC], read_mac
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mov dword [ebx+device.set_MAC], write_mac
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mov dword [ebx+device.unload], unload
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mov dword [ebx+device.name], my_service
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; 4k. Now, it's time to find the base io addres of the PCI device
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; TODO: implement check if bus and dev exist on this machine
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mov edx, PCI_BASE_ADDRESS_0
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.reg_check:
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push edx
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stdcall PciRead16, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], edx
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pop edx
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test al, PCI_BASE_ADDRESS_SPACE_IO
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jz .inc_reg
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and eax, PCI_BASE_ADDRESS_IO_MASK
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jnz .got_io
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.inc_reg:
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add edx, 4
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cmp edx, PCI_BASE_ADDRESS_5
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jbe .reg_check
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jmp .fail
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.got_io:
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mov [ebx+device.io_addr], eax
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; 4l. We've found the io address, find IRQ now
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stdcall PciRead8, dword [ebx+device.pci_bus], dword [ebx+device.pci_dev], 0x3c
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mov byte [ebx+device.irq_line], al
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; 4m. Add new device to the list (required for int_handler).
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mov eax, [NUM_DEV]
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mov [DEV_LIST+4*eax], ebx
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inc [NUM_DEV]
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; 4m. Ok, the eth_device structure is ready, let's probe the device
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call SIS900_probe
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test eax, eax
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jnz .destroy
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; 4n. If device was successfully initialized, register it for the kernel.
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call EthRegDev
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cmp eax, -1
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je .destroy
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ret 4
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; 5. If the device was already loaded, find the device number and return it in eax
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.find_devicenum:
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mov ebx, eax
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call EthStruc2Dev ; This kernel procedure converts a pointer to device struct in ebx
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; into a device number in edi
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mov eax, edi ; Application wants it in eax instead
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ret 4
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; If an error occured, remove all allocated data and exit (returning -1 in eax)
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.destroy:
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dec [NUM_DEV]
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; todo: reset device into virgin state
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.err:
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stdcall KernelFree, ebx
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.fail:
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xor eax, eax
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ret 4
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;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
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;; ;;
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;; Actual Hardware dependent code starts here ;;
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;; ;;
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;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
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unload:
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; TODO: (in this particular order)
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;
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; - Stop the device
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; - Detach int handler
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; - Remove device from local list
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; - call unregister function in kernel
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; - Remove all allocated structures and buffers the card used
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or eax,-1
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ret
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;********************************************************************
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; Interface
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; SIS900_reset
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; SIS900_probe
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; SIS900_poll
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; SIS900_transmit
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;
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;********************************************************************
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;********************************************************************
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; Comments:
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; Known to work with the following SIS900 ethernet cards:
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; - Device ID: 0x0900 Vendor ID: 0x1039 Revision: 0x91
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; - Device ID: 0x0900 Vendor ID: 0x1039 Revision: 0x90
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;
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; If your card is not listed, try it and let me know if it
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; functions properly and it will be aded to the list. If not
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; we may be able to add support for it.
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;
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; ToDo:
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; - Enable MII interface for reading speed
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; and duplex settings.
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;
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; - Update Poll routine to support packet fragmentation.
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;
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; - Add additional support for other sis900 based cards
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;
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;********************************************************************
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; comment the next line out if you don't want debug info printed
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; on the debug board. This option adds a lot of bytes to the driver
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; so it's worth to comment it out.
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; SIS900_DEBUG equ 1
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SIS900_ETH_ALEN equ 6 ;* Size of Ethernet address *
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SIS900_ETH_HLEN equ 14 ;* Size of ethernet header *
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SIS900_ETH_ZLEN equ 60 ;* Minimum packet length *
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SIS900_DSIZE equ 0x00000fff
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SIS900_CRC_SIZE equ 4
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SIS900_RFADDR_shift equ 16
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;SIS900 Symbolic offsets to registers.
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SIS900_cr equ 0x0 ; Command Register
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SIS900_cfg equ 0x4 ; Configuration Register
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SIS900_mear equ 0x8 ; EEPROM Access Register
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SIS900_ptscr equ 0xc ; PCI Test Control Register
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SIS900_isr equ 0x10 ; Interrupt Status Register
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SIS900_imr equ 0x14 ; Interrupt Mask Register
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SIS900_ier equ 0x18 ; Interrupt Enable Register
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SIS900_epar equ 0x18 ; Enhanced PHY Access Register
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SIS900_txdp equ 0x20 ; Transmit Descriptor Pointer Register
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SIS900_txcfg equ 0x24 ; Transmit Configuration Register
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SIS900_rxdp equ 0x30 ; Receive Descriptor Pointer Register
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SIS900_rxcfg equ 0x34 ; Receive Configuration Register
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SIS900_flctrl equ 0x38 ; Flow Control Register
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SIS900_rxlen equ 0x3c ; Receive Packet Length Register
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SIS900_rfcr equ 0x48 ; Receive Filter Control Register
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SIS900_rfdr equ 0x4C ; Receive Filter Data Register
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SIS900_pmctrl equ 0xB0 ; Power Management Control Register
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SIS900_pmer equ 0xB4 ; Power Management Wake-up Event Register
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;SIS900 Command Register Bits
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SIS900_RELOAD equ 0x00000400
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SIS900_ACCESSMODE equ 0x00000200
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SIS900_RESET equ 0x00000100
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SIS900_SWI equ 0x00000080
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SIS900_RxRESET equ 0x00000020
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SIS900_TxRESET equ 0x00000010
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SIS900_RxDIS equ 0x00000008
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SIS900_RxENA equ 0x00000004
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SIS900_TxDIS equ 0x00000002
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SIS900_TxENA equ 0x00000001
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;SIS900 Configuration Register Bits
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SIS900_DESCRFMT equ 0x00000100 ; 7016 specific
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SIS900_REQALG equ 0x00000080
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SIS900_SB equ 0x00000040
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SIS900_POW equ 0x00000020
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SIS900_EXD equ 0x00000010
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SIS900_PESEL equ 0x00000008
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SIS900_LPM equ 0x00000004
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SIS900_BEM equ 0x00000001
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SIS900_RND_CNT equ 0x00000400
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SIS900_FAIR_BACKOFF equ 0x00000200
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SIS900_EDB_MASTER_EN equ 0x00002000
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;SIS900 Eeprom Access Reigster Bits
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SIS900_MDC equ 0x00000040
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SIS900_MDDIR equ 0x00000020
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SIS900_MDIO equ 0x00000010 ; 7016 specific
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SIS900_EECS equ 0x00000008
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SIS900_EECLK equ 0x00000004
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SIS900_EEDO equ 0x00000002
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SIS900_EEDI equ 0x00000001
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;SIS900 TX Configuration Register Bits
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SIS900_ATP equ 0x10000000 ;Automatic Transmit Padding
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SIS900_MLB equ 0x20000000 ;Mac Loopback Enable
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SIS900_HBI equ 0x40000000 ;HeartBeat Ignore (Req for full-dup)
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SIS900_CSI equ 0x80000000 ;CarrierSenseIgnore (Req for full-du
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;SIS900 RX Configuration Register Bits
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SIS900_AJAB equ 0x08000000 ;
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SIS900_ATX equ 0x10000000 ;Accept Transmit Packets
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SIS900_ARP equ 0x40000000 ;accept runt packets (<64bytes)
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SIS900_AEP equ 0x80000000 ;accept error packets
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;SIS900 Interrupt Reigster Bits
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SIS900_WKEVT equ 0x10000000
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SIS900_TxPAUSEEND equ 0x08000000
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SIS900_TxPAUSE equ 0x04000000
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SIS900_TxRCMP equ 0x02000000
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SIS900_RxRCMP equ 0x01000000
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SIS900_DPERR equ 0x00800000
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SIS900_SSERR equ 0x00400000
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SIS900_RMABT equ 0x00200000
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SIS900_RTABT equ 0x00100000
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SIS900_RxSOVR equ 0x00010000
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SIS900_HIBERR equ 0x00008000
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SIS900_SWINT equ 0x00001000
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SIS900_MIBINT equ 0x00000800
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SIS900_TxURN equ 0x00000400
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SIS900_TxIDLE equ 0x00000200
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SIS900_TxERR equ 0x00000100
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SIS900_TxDESC equ 0x00000080
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SIS900_TxOK equ 0x00000040
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SIS900_RxORN equ 0x00000020
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SIS900_RxIDLE equ 0x00000010
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SIS900_RxEARLY equ 0x00000008
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SIS900_RxERR equ 0x00000004
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SIS900_RxDESC equ 0x00000002
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SIS900_RxOK equ 0x00000001
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;SIS900 Interrupt Enable Reigster Bits
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SIS900_IE equ 0x00000001
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;SIS900 Revision ID
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SIS900B_900_REV equ 0x03
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SIS630A_900_REV equ 0x80
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SIS630E_900_REV equ 0x81
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SIS630S_900_REV equ 0x82
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SIS630EA1_900_REV equ 0x83
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SIS630ET_900_REV equ 0x84
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SIS635A_900_REV equ 0x90
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SIS900_960_REV equ 0x91
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;SIS900 Receive Filter Control Register Bits
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SIS900_RFEN equ 0x80000000
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SIS900_RFAAB equ 0x40000000
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SIS900_RFAAM equ 0x20000000
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SIS900_RFAAP equ 0x10000000
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SIS900_RFPromiscuous equ 0x70000000
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;SIS900 Reveive Filter Data Mask
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SIS900_RFDAT equ 0x0000FFFF
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;SIS900 Eeprom Address
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SIS900_EEPROMSignature equ 0x00
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SIS900_EEPROMVendorID equ 0x02
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SIS900_EEPROMDeviceID equ 0x03
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SIS900_EEPROMMACAddr equ 0x08
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SIS900_EEPROMChecksum equ 0x0b
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;The EEPROM commands include the alway-set leading bit.
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;SIS900 Eeprom Command
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SIS900_EEread equ 0x0180
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SIS900_EEwrite equ 0x0140
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SIS900_EEerase equ 0x01C0
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SIS900_EEwriteEnable equ 0x0130
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SIS900_EEwriteDisable equ 0x0100
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SIS900_EEeraseAll equ 0x0120
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SIS900_EEwriteAll equ 0x0110
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SIS900_EEaddrMask equ 0x013F
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SIS900_EEcmdShift equ 16
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;For SiS962 or SiS963, request the eeprom software access
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SIS900_EEREQ equ 0x00000400
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SIS900_EEDONE equ 0x00000200
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SIS900_EEGNT equ 0x00000100
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SIS900_pci_revision equ ebx+device.pci_revision
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sis900_get_mac_func equ ebx+device.get_MAC
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sis900_special_func equ ebx+device.special_func
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sis900_table_entries equ ebx+device.table_entries
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cur_rx equ ebx+device.cur_rx
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sys_msg_board_str equ SysMsgBoardStr
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;***************************************************************************
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; Function
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; SIS900_probe
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; Description
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; Searches for an ethernet card, enables it and clears the rx buffer
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; If a card was found, it enables the ethernet -> TCPIP link
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;not done - still need to probe mii transcievers
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;***************************************************************************
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if defined SIS900_DEBUG
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SIS900_Debug_Str_Unsupported db 'Sorry your card is unsupported ',13,10,0
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end if
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SIS900_probe:
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;******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+4]
|
|
; size of buffer in [esp+8]
|
|
; 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+8], MAX_ETH_FRAME_SIZE
|
|
jg transmit_finish
|
|
cmp dword [esp+8], 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+8]
|
|
lea edi, [ebx+0x1000]
|
|
mov ecx, [esp+12]
|
|
mov edx, ecx
|
|
shr ecx, 2
|
|
and edx, 3
|
|
rep movsd
|
|
mov ecx, edx
|
|
rep movsb
|
|
;**************set length tag**************
|
|
mov ecx, [esp+12] ;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:
|
|
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)
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my_service db 'SIS900',0 ; max 16 chars include zero
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include_debug_strings ; All data wich FDO uses will be included here
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section '.data' data readable writable align 16 ; place all uninitialized data place here
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DEV_LIST rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling
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