forked from KolibriOS/kolibrios
1323 lines
41 KiB
NASM
1323 lines
41 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2010. 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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format MS COFF
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API_VERSION = 0x01000100
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DRIVER_VERSION = 5
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MAX_DEVICES = 16
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DEBUG = 1
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__DEBUG__ = 1
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__DEBUG_LEVEL__ = 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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include 'netdrv.inc'
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public START
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public version
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NUM_RX_DESC = 4 ;* Number of RX descriptors *
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NUM_TX_DESC = 1 ;* Number of TX descriptors *
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RX_BUFF_SZ = 1520 ;* Buffer size for each Rx buffer *
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TX_BUFF_SZ = 1516 ;* Buffer size for each Tx buffer *
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MAX_ETH_FRAME_SIZE = 1516
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virtual at ebx
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device:
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ETH_DEVICE
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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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.cur_tx db ?
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.last_tx db ?
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.pci_revision db ?
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.table_entries db ?
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dw ? ; align 4
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.special_func dd ?
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.txd rd (4 * NUM_TX_DESC)
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.rxd rd (4 * NUM_RX_DESC)
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.size = $ - device
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end virtual
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macro ee_delay {
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push eax
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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in eax, dx
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pop eax
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}
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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, [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 [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, [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 [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, [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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; check if the device is already listed
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mov esi, device_list
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mov ecx, [devices]
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test ecx, ecx
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jz .firstdevice
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; mov eax, [IOCTL.input] ; get the pci bus and device numbers
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mov ax , [eax+1] ;
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.nextdevice:
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mov ebx, [esi]
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cmp ax , word [device.pci_bus] ; compare with pci and device num in device list (notice the usage of word instead of byte)
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je .find_devicenum ; Device is already loaded, let's find it's device number
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add esi, 4
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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 [devices], 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, device.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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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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; 4i. Save PCI coordinates
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mov eax, [IOCTL.input]
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mov cl , [eax+1]
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mov [device.pci_bus], cl
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mov cl , [eax+2]
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mov [device.pci_dev], cl
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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 probe.
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mov [device.reset], init
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mov [device.transmit], transmit
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; mov [device.get_MAC], read_mac
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mov [device.set_MAC], write_mac
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mov [device.unload], unload
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mov [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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; Now, it's time to find the base io addres of the PCI device
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find_io [device.pci_bus], [device.pci_dev], [device.io_addr]
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; We've found the io address, find IRQ now
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find_irq [device.pci_bus], [device.pci_dev], [device.irq_line]
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; 4m. Add new device to the list (required for int_handler).
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mov eax, [devices]
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mov [device_list+4*eax], ebx
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inc [devices]
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; 4m. Ok, the eth_device structure is ready, let's probe the device
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call 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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mov [device.type], NET_TYPE_ETH
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call NetRegDev
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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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call NetPtrToNum ; 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 [devices]
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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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; 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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; - Update receive routine to support packet fragmentation.
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; - Add additional support for other sis900 based cards
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;
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;********************************************************************
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ETH_ALEN = 6 ; Size of Ethernet address
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ETH_HLEN = 14 ; Size of ethernet header
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ETH_ZLEN = 60 ; Minimum packet length
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DSIZE = 0x00000fff
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CRC_SIZE = 4
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RFADDR_shift = 16
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; Symbolic offsets to registers.
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cr = 0x0 ; Command Register
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cfg = 0x4 ; Configuration Register
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mear = 0x8 ; EEPROM Access Register
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ptscr = 0xc ; PCI Test Control Register
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isr = 0x10 ; Interrupt Status Register
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imr = 0x14 ; Interrupt Mask Register
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ier = 0x18 ; Interrupt Enable Register
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epar = 0x18 ; Enhanced PHY Access Register
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txdp = 0x20 ; Transmit Descriptor Pointer Register
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txcfg = 0x24 ; Transmit Configuration Register
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rxdp = 0x30 ; Receive Descriptor Pointer Register
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rxcfg = 0x34 ; Receive Configuration Register
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flctrl = 0x38 ; Flow Control Register
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rxlen = 0x3c ; Receive Packet Length Register
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rfcr = 0x48 ; Receive Filter Control Register
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rfdr = 0x4C ; Receive Filter Data Register
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pmctrl = 0xB0 ; Power Management Control Register
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pmer = 0xB4 ; Power Management Wake-up Event Register
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; Command Register Bits
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RELOAD = 0x00000400
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ACCESSMODE = 0x00000200
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RESET = 0x00000100
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SWI = 0x00000080
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RxRESET = 0x00000020
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TxRESET = 0x00000010
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RxDIS = 0x00000008
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RxENA = 0x00000004
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TxDIS = 0x00000002
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TxENA = 0x00000001
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; Configuration Register Bits
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DESCRFMT = 0x00000100 ; 7016 specific
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REQALG = 0x00000080
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SB = 0x00000040
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POW = 0x00000020
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EXD = 0x00000010
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PESEL = 0x00000008
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LPM = 0x00000004
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BEM = 0x00000001
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RND_CNT = 0x00000400
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FAIR_BACKOFF = 0x00000200
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EDB_MASTER_EN = 0x00002000
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; Eeprom Access Reigster Bits
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MDC = 0x00000040
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MDDIR = 0x00000020
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MDIO = 0x00000010 ; 7016 specific
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EECS = 0x00000008
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EECLK = 0x00000004
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EEDO = 0x00000002
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EEDI = 0x00000001
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; TX Configuration Register Bits
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ATP = 0x10000000 ;Automatic Transmit Padding
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MLB = 0x20000000 ;Mac Loopback Enable
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HBI = 0x40000000 ;HeartBeat Ignore (Req for full-dup)
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CSI = 0x80000000 ;CarrierSenseIgnore (Req for full-du
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; RX Configuration Register Bits
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AJAB = 0x08000000 ;
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ATX = 0x10000000 ;Accept Transmit Packets
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ARP = 0x40000000 ;accept runt packets (<64bytes)
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AEP = 0x80000000 ;accept error packets
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; Interrupt Reigster Bits
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WKEVT = 0x10000000
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TxPAUSEEND = 0x08000000
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TxPAUSE = 0x04000000
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TxRCMP = 0x02000000
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RxRCMP = 0x01000000
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DPERR = 0x00800000
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SSERR = 0x00400000
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RMABT = 0x00200000
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RTABT = 0x00100000
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RxSOVR = 0x00010000
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HIBERR = 0x00008000
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SWINT = 0x00001000
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MIBINT = 0x00000800
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TxURN = 0x00000400
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TxIDLE = 0x00000200
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TxERR = 0x00000100
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TxDESC = 0x00000080
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TxOK = 0x00000040
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RxORN = 0x00000020
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RxIDLE = 0x00000010
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RxEARLY = 0x00000008
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RxERR = 0x00000004
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RxDESC = 0x00000002
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RxOK = 0x00000001
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; Interrupt Enable Register Bits
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IE = RxOK + TxOK
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; Revision ID
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SIS900B_900_REV = 0x03
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SIS630A_900_REV = 0x80
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SIS630E_900_REV = 0x81
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SIS630S_900_REV = 0x82
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SIS630EA1_900_REV = 0x83
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SIS630ET_900_REV = 0x84
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SIS635A_900_REV = 0x90
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SIS900_960_REV = 0x91
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; Receive Filter Control Register Bits
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RFEN = 0x80000000
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RFAAB = 0x40000000
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RFAAM = 0x20000000
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RFAAP = 0x10000000
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RFPromiscuous = 0x70000000
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; Reveive Filter Data Mask
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RFDAT = 0x0000FFFF
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; Eeprom Address
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EEPROMSignature = 0x00
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EEPROMVendorID = 0x02
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EEPROMDeviceID = 0x03
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EEPROMMACAddr = 0x08
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EEPROMChecksum = 0x0b
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;The EEPROM commands include the alway-set leading bit.
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EEread = 0x0180
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EEwrite = 0x0140
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EEerase = 0x01C0
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EEwriteEnable = 0x0130
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EEwriteDisable = 0x0100
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EEeraseAll = 0x0120
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EEwriteAll = 0x0110
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EEaddrMask = 0x013F
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EEcmdShift = 16
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;For SiS962 or SiS963, request the eeprom software access
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EEREQ = 0x00000400
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EEDONE = 0x00000200
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EEGNT = 0x00000100
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;***************************************************************************
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;
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; probe
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;
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; Searches for an ethernet card, enables it and clears the rx buffer
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;
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; TODO: probe mii transceivers
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;
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;***************************************************************************
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align 4
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probe:
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movzx eax, [device.pci_bus]
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movzx edx, [device.pci_dev]
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stdcall PciWrite8, eax, edx, 0x40, 0 ; Wake Up Chip
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make_bus_master [device.pci_bus], [device.pci_dev]
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; Get Card Revision
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movzx eax, [device.pci_bus]
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movzx edx, [device.pci_dev]
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stdcall PciRead8, eax, edx, 0x08
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mov [device.pci_revision], al ; save the revision for later use
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; Look up through the specific_table
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mov esi, specific_table
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.loop:
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cmp dword [esi], 0 ; Check if we reached end of the list
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je .error
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cmp al, [esi] ; Check if revision is OK
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je .ok
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add esi, 12 ; Advance to next entry
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jmp .loop
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.error:
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DEBUGF 1, "Device not supported!\n"
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or eax, -1
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ret
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; Find Get Mac Function
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.ok:
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mov eax, [esi+4] ; Get pointer to "get MAC" function
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mov [device.get_MAC], eax
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mov eax, [esi+8] ; Get pointer to special initialization fn
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mov [device.special_func], eax
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; Get MAC
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call [device.get_MAC]
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; Call special initialization fn if requested
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cmp [device.special_func],0
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je @f
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call [device.special_func]
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@@:
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; Set table entries
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mov [device.table_entries], 16
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cmp [device.pci_revision], SIS635A_900_REV
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jae @f
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cmp [device.pci_revision], SIS900B_900_REV
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je @f
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mov [device.table_entries], 8
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@@:
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; TODO: Probe for mii transceiver
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;***************************************************************************
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;
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; init
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;
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; resets the ethernet controller chip and various
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; data structures required for sending and receiving packets.
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;
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;***************************************************************************
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align 4
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init:
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call reset
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call init_rxfilter
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call init_txd
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call init_rxd
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call set_rx_mode
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call set_tx_mode
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;call check_mode
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; enable interrupts on packet receive
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xor eax, eax
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inc eax ; eax = 1 = RxOK
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set_io 0
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set_io imr
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out dx, eax
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; globally enable interrupts
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set_io ier
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out dx, eax ; eax is still 1
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xor eax, eax
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mov [device.mtu], 1514
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ret
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;***************************************************************************
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;
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; reset
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;
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; disables interrupts and soft resets the controller chip
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;
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;***************************************************************************
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align 4
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reset:
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movzx eax, [device.irq_line]
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stdcall AttachIntHandler, eax, int_handler, 0
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;--------------------------------------------
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; Disable Interrupts and reset Receive Filter
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set_io 0
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set_io ier
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xor eax, eax
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out dx, eax
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set_io imr
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out dx, eax
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set_io rfcr
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out dx, eax
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;-----------
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|
; Reset Card
|
|
|
|
set_io cr
|
|
in eax, dx ; Get current Command Register
|
|
or eax, RESET + RxRESET + TxRESET ; set flags
|
|
out dx, eax ; Write new Command Register
|
|
|
|
;----------
|
|
; Wait loop
|
|
|
|
set_io isr
|
|
mov ecx, 1000
|
|
.loop:
|
|
dec ecx
|
|
jz .error
|
|
in eax, dx ; move interrup status to eax
|
|
cmp eax, 0x03000000
|
|
jne .loop
|
|
|
|
;------------------------------------------------------
|
|
; Set Configuration Register depending on Card Revision
|
|
|
|
set_io cfg
|
|
mov eax, PESEL ; Configuration Register Bit
|
|
cmp [device.pci_revision], SIS635A_900_REV
|
|
je .match
|
|
cmp [device.pci_revision], SIS900B_900_REV ; Check card revision
|
|
je .match
|
|
out dx, eax ; no revision match
|
|
jmp .done
|
|
|
|
.match: ; Revision match
|
|
or eax, RND_CNT ; Configuration Register Bit
|
|
out dx, eax
|
|
|
|
.done:
|
|
xor eax, eax
|
|
ret
|
|
|
|
.error:
|
|
DEBUGF 1, "Reset failed!\n"
|
|
or eax, -1
|
|
ret
|
|
|
|
|
|
;***************************************************************************
|
|
;
|
|
; sis_init_rxfilter
|
|
;
|
|
; sets receive filter address to our MAC address
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
init_rxfilter:
|
|
|
|
;------------------------------------
|
|
; Get Receive Filter Control Register
|
|
|
|
set_io 0
|
|
set_io rfcr
|
|
in eax, dx
|
|
push eax
|
|
|
|
;-----------------------------------------------
|
|
; disable packet filtering before setting filter
|
|
|
|
and eax, not RFEN
|
|
out dx, eax
|
|
|
|
;--------------------------------------
|
|
; load MAC addr to filter data register
|
|
|
|
xor ecx, ecx
|
|
RXINT_Mac_Write: ; high word of eax tells card which mac byte to write
|
|
mov eax, ecx
|
|
set_io 0
|
|
set_io rfcr
|
|
shl eax, 16 ;
|
|
out dx, eax ;
|
|
set_io rfdr
|
|
mov ax, word [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 RXINT_Mac_Write
|
|
|
|
;------------------------
|
|
; enable packet filtering
|
|
|
|
pop eax ;old register value
|
|
set_io rfcr
|
|
or eax, RFEN ;enable filtering
|
|
out dx, eax ;set register
|
|
|
|
ret
|
|
|
|
;***************************************************************************
|
|
;
|
|
; init_txd
|
|
;
|
|
; initializes the Tx descriptor
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
init_txd:
|
|
|
|
;-------------------------
|
|
; initialize TX descriptor
|
|
|
|
mov dword [device.txd], 0 ; put link to next descriptor in link field
|
|
mov dword [device.txd+4], 0 ; clear status field
|
|
mov dword [device.txd+8], 0 ; ptr to buffer
|
|
|
|
;----------------------------------
|
|
; load Transmit Descriptor Register
|
|
|
|
set_io 0
|
|
set_io txdp ; TX Descriptor Pointer
|
|
lea eax, [device.txd]
|
|
GetRealAddr
|
|
out dx, eax ; move the pointer
|
|
|
|
ret
|
|
|
|
;***************************************************************************
|
|
;
|
|
; init_rxd
|
|
;
|
|
; initializes the Rx descriptor ring
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
init_rxd:
|
|
|
|
; init RX descriptors
|
|
mov ecx, NUM_RX_DESC
|
|
lea esi, [device.rxd]
|
|
|
|
.loop:
|
|
lea eax, [esi + 16]
|
|
GetRealAddr
|
|
mov dword [esi+0], eax
|
|
mov dword [esi+4], RX_BUFF_SZ
|
|
|
|
stdcall KernelAlloc, RX_BUFF_SZ
|
|
test eax, eax
|
|
jz .fail
|
|
mov dword [esi+12], eax
|
|
GetRealAddr
|
|
mov dword [esi+8], eax
|
|
add esi, 16
|
|
loop .loop
|
|
|
|
lea eax, [device.rxd]
|
|
GetRealAddr
|
|
mov dword [esi - 16], eax ; correct last descriptor link ptr
|
|
|
|
; And output ptr to first desc, to device
|
|
|
|
set_io 0
|
|
set_io rxdp
|
|
out dx, eax
|
|
|
|
mov [device.cur_rx], 0 ; Set curent rx discriptor to 0
|
|
|
|
.fail: ;;; TODO: abort instead!
|
|
ret
|
|
|
|
|
|
;***************************************************************************
|
|
;
|
|
; set_tx_mode
|
|
;
|
|
; sets the transmit mode to allow for full duplex
|
|
;
|
|
; 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
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
set_tx_mode:
|
|
|
|
set_io 0
|
|
set_io cr
|
|
in eax, dx ; Get current Command Register
|
|
or eax, TxENA ; Enable Receive
|
|
out dx, eax
|
|
|
|
set_io txcfg ; Transmit config Register offset
|
|
mov eax, ATP + HBI + CSI +0x00600120
|
|
; allow automatic padding
|
|
; allow heartbeat ignore
|
|
; allow carrier sense ignore
|
|
; Max DMA Burst (128 bytes)
|
|
; TX Fill Threshold
|
|
; TX Drain Threshold
|
|
out dx, eax
|
|
|
|
ret
|
|
|
|
;***************************************************************************
|
|
;
|
|
; set_rx_mode
|
|
;
|
|
; sets the receive mode to accept all broadcast packets and packets
|
|
; with our MAC address, and reject all multicast packets. Also allows
|
|
; full-duplex
|
|
;
|
|
; 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
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
set_rx_mode:
|
|
|
|
;----------------------------------------------
|
|
; update Multicast Hash Table in Receive Filter
|
|
|
|
xor cl, cl
|
|
.loop:
|
|
set_io 0
|
|
set_io 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
|
|
|
|
set_io 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, [device.table_entries]
|
|
jl .loop
|
|
|
|
;------------------------------------
|
|
; Set Receive Filter Control Register
|
|
|
|
set_io rfcr ; Receive Filter Control Register offset
|
|
mov eax, RFAAB + RFAAM + RFAAP + RFEN
|
|
; accecpt all broadcast packets
|
|
; accept all multicast packets
|
|
; Accept all packets
|
|
; enable receiver filter
|
|
out dx, eax
|
|
;----------------
|
|
; Enable Receiver
|
|
|
|
set_io cr
|
|
in eax, dx ; Get current Command Register
|
|
or eax, RxENA ; Enable Receive
|
|
out dx, eax
|
|
|
|
;-------------------
|
|
; Configure Receiver
|
|
|
|
set_io rxcfg ; Receive Config Register offset
|
|
mov eax, ATX + 0x00600002
|
|
; Accept Transmit Packets
|
|
; (Req for full-duplex and PMD Loopback)
|
|
; Max DMA Burst
|
|
; RX Drain Threshold, 8X8 bytes or 64bytes
|
|
out dx, eax
|
|
|
|
ret
|
|
|
|
;***************************************************************************
|
|
;
|
|
; SIS960_get_mac_addr: - Get MAC address for SiS962 or SiS963 model
|
|
;
|
|
; SiS962 or SiS963 model, use EEPROM to store MAC address.
|
|
; 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 accessed 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.
|
|
;
|
|
; Return 0 is EAX = failure
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
SIS960_get_mac_addr:
|
|
|
|
;-------------------------------
|
|
; Send Request for eeprom access
|
|
|
|
set_io 0
|
|
set_io mear ; Eeprom access register
|
|
mov eax, EEREQ ; Request access to eeprom
|
|
out dx, eax ; Send request
|
|
|
|
;-----------------------------------------------------
|
|
; Loop 4000 times and if access not granted, error out
|
|
|
|
mov ecx, 4000
|
|
.loop:
|
|
in eax, dx ; get eeprom status
|
|
test eax, EEGNT ; see if eeprom access granted flag is set
|
|
jnz .got_access ; if it is, go access the eeprom
|
|
loop .loop ; else keep waiting
|
|
|
|
DEBUGF 1, "Access to EEprom failed!\n", 0
|
|
|
|
set_io mear ; Eeprom access register
|
|
mov eax, EEDONE ; tell eeprom we are done
|
|
out dx, eax
|
|
|
|
or eax, -1 ; error
|
|
ret
|
|
|
|
.got_access:
|
|
|
|
;------------------------------------------
|
|
; EEprom access granted, read MAC from card
|
|
|
|
; zero based so 3-16 bit reads will take place
|
|
|
|
mov ecx, 2
|
|
.read_loop:
|
|
mov eax, EEPROMMACAddr ; Base Mac Address
|
|
add eax, ecx ; Current Mac Byte Offset
|
|
push ecx
|
|
call read_eeprom ; try to read 16 bits
|
|
pop ecx
|
|
mov word [device.mac+ecx*2], ax ; save 16 bits to the MAC ID varible
|
|
dec ecx ; one less word to read
|
|
jns .read_loop ; if more read more
|
|
mov eax, 1 ; return non-zero indicating success
|
|
|
|
DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[device.mac]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2
|
|
|
|
;-------------------------------------
|
|
; Tell EEPROM We are Done Accessing It
|
|
|
|
.done:
|
|
set_io 0
|
|
set_io mear ; Eeprom access register
|
|
mov eax, EEDONE ; tell eeprom we are done
|
|
out dx, eax
|
|
|
|
xor eax, eax ; ok
|
|
ret
|
|
|
|
|
|
|
|
|
|
;***************************************************************************
|
|
;
|
|
; get_mac_addr: - Get MAC address for stand alone SiS900 model
|
|
;
|
|
; Older SiS900 and friends, use EEPROM to store MAC address.
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
SIS900_get_mac_addr:
|
|
|
|
;------------------------------------
|
|
; check to see if we have sane EEPROM
|
|
|
|
mov eax, EEPROMSignature ; Base Eeprom Signature
|
|
call read_eeprom ; try to read 16 bits
|
|
cmp ax, 0xffff
|
|
je .err
|
|
test ax, ax
|
|
je .err
|
|
|
|
;-----------
|
|
; Read MacID
|
|
|
|
; zero based so 3-16 bit reads will take place
|
|
|
|
mov ecx, 2
|
|
.loop:
|
|
mov eax, EEPROMMACAddr ; Base Mac Address
|
|
add eax, ecx ; Current Mac Byte Offset
|
|
push ecx
|
|
call read_eeprom ; try to read 16 bits
|
|
pop ecx
|
|
mov word [device.mac+ecx*2], ax ; save 16 bits to the MAC ID storage
|
|
dec ecx ; one less word to read
|
|
jns .loop ; if more read more
|
|
|
|
DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[device.mac]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2
|
|
|
|
xor eax, eax
|
|
ret
|
|
|
|
|
|
.err:
|
|
DEBUGF 1, "Access to EEprom failed!\n", 0
|
|
|
|
or eax, -1
|
|
ret
|
|
|
|
|
|
;***************************************************************************
|
|
;
|
|
; Get_Mac_SIS635_900_REV: - Get MAC address for model 635
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
Get_Mac_SIS635_900_REV:
|
|
|
|
set_io 0
|
|
set_io rfcr
|
|
in eax, dx
|
|
mov edi, eax ; EDI=rfcrSave
|
|
|
|
set_io cr
|
|
or eax, RELOAD
|
|
out dx, eax
|
|
|
|
xor eax, eax
|
|
out dx, eax
|
|
|
|
;-----------------------------------------------
|
|
; Disable packet filtering before setting filter
|
|
|
|
set_io rfcr
|
|
mov eax, edi
|
|
and edi, not RFEN
|
|
out dx, eax
|
|
|
|
;---------------------------------
|
|
; Load MAC to filter data register
|
|
|
|
mov ecx, 3
|
|
lea edi, [device.mac]
|
|
.loop:
|
|
set_io 0
|
|
set_io rfcr
|
|
mov eax, ecx
|
|
shl eax, RFADDR_shift
|
|
out dx, eax
|
|
|
|
set_io rfdr
|
|
in eax, dx
|
|
stosw
|
|
loop .loop
|
|
|
|
;------------------------
|
|
; Enable packet filtering
|
|
|
|
; set_io rfcr
|
|
; mov eax, edi
|
|
; or eax, RFEN
|
|
; out dx, eax
|
|
|
|
xor eax, eax
|
|
ret
|
|
|
|
;***************************************************************************
|
|
;
|
|
; read_eeprom
|
|
;
|
|
; reads and returns a given location from EEPROM
|
|
;
|
|
; IN: si = addr
|
|
; OUT: ax = data
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
read_eeprom:
|
|
|
|
set_io 0
|
|
set_io mear
|
|
|
|
xor eax, eax ; start send
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
or eax, EECLK
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
;------------------------------------
|
|
; Send the read command
|
|
|
|
or esi, EEread
|
|
mov ecx, 1 shl 9
|
|
|
|
.loop:
|
|
mov eax, EECS
|
|
test esi, ecx
|
|
jz @f
|
|
or eax, EEDI
|
|
@@:
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
or eax, EECLK
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
shr esi, 1
|
|
jnc .loop
|
|
|
|
mov eax, EECS
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
;------------------------
|
|
; Read 16-bits of data in
|
|
|
|
xor esi, esi
|
|
mov cx, 16
|
|
.loop2:
|
|
mov eax, EECS
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
or eax, EECLK
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
in eax, dx
|
|
shl esi, 1
|
|
test eax, EEDO
|
|
jz @f
|
|
inc esi
|
|
@@:
|
|
loop .loop2
|
|
|
|
;----------------------------
|
|
; Terminate the EEPROM access
|
|
|
|
xor eax, eax
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
mov eax, EECLK
|
|
out dx, eax
|
|
ee_delay
|
|
|
|
movzx eax, si
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
write_mac:
|
|
DEBUGF 1,'Setting MAC is not supported for SIS900 card.\n'
|
|
add esp, 6
|
|
ret
|
|
|
|
;***************************************************************************
|
|
;
|
|
; int_handler
|
|
;
|
|
; 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
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
int_handler:
|
|
; find pointer of device which made IRQ occur
|
|
mov esi, device_list
|
|
mov ecx, [devices]
|
|
test ecx, ecx
|
|
jz .nothing
|
|
.nextdevice:
|
|
mov ebx, [esi]
|
|
set_io 0
|
|
set_io isr
|
|
in eax, dx ; note that this clears all interrupts
|
|
test ax, IE
|
|
jnz .got_it
|
|
loop .nextdevice
|
|
.nothing:
|
|
ret
|
|
.got_it:
|
|
|
|
test ax, RxOK
|
|
jz .no_rx
|
|
|
|
push ax
|
|
|
|
;-----------
|
|
; Get Status
|
|
movzx eax, [device.cur_rx] ; find current discriptor
|
|
shl eax, 4 ; * 16
|
|
mov ecx, dword[device.rxd+eax+4] ; get receive status
|
|
|
|
;-------------------------------------------
|
|
; Check RX_Status to see if packet is waiting
|
|
test ecx, 0x80000000
|
|
jnz .is_packet
|
|
ret
|
|
|
|
;----------------------------------------------
|
|
; There is a packet waiting check it for errors
|
|
.is_packet:
|
|
test ecx, 0x67C0000 ; see if there are any errors
|
|
jnz .error_status
|
|
|
|
;---------------------
|
|
; Check size of packet
|
|
and ecx, DSIZE ; get packet size minus CRC
|
|
sub ecx, CRC_SIZE ; make sure packet contains data
|
|
jle .error_size
|
|
|
|
; update statistics
|
|
inc dword [device.packets_rx]
|
|
add dword [device.bytes_rx], ecx
|
|
adc dword [device.bytes_rx+4], 0
|
|
|
|
push ebx
|
|
push .return
|
|
push ecx ; packet size
|
|
push [device.rxd+eax+12] ; packet ptr
|
|
DEBUGF 1, "Packet received OK\n"
|
|
jmp EthReceiver
|
|
.return:
|
|
pop ebx
|
|
|
|
; Reset status, allow ethernet card access to descriptor
|
|
movzx ecx, [device.cur_rx]
|
|
shl ecx, 4 ; *16
|
|
mov ecx, [device.rxd+ecx]
|
|
stdcall KernelAlloc, RX_BUFF_SZ
|
|
test eax, eax
|
|
jz .fail
|
|
mov dword [ecx+12], eax
|
|
GetRealAddr
|
|
mov dword [ecx+8], eax
|
|
mov dword [ecx+4], RX_BUFF_SZ
|
|
|
|
inc [device.cur_rx] ; get next descriptor
|
|
and [device.cur_rx], NUM_RX_DESC-1 ; only 4 descriptors 0-3
|
|
|
|
; Enable Receiver
|
|
set_io 0
|
|
set_io cr ; Command Register offset
|
|
in eax, dx ; Get current Command Register
|
|
or eax, RxENA ; Enable Receiver
|
|
out dx, eax
|
|
|
|
pop ax
|
|
jmp .no_rx
|
|
|
|
.error_status:
|
|
|
|
DEBUGF 1, "Packet error: %x\n", ecx
|
|
jmp .fail
|
|
|
|
.error_size:
|
|
|
|
DEBUGF 1, "Packet too large/small\n"
|
|
jmp .fail
|
|
|
|
.no_rx:
|
|
;; test ax, TxOk
|
|
;; jz .no_tx
|
|
|
|
;;; TODO: free all unused buffers
|
|
;; stdcall KernelFree, eax
|
|
|
|
.no_tx:
|
|
|
|
ret
|
|
|
|
|
|
.fail:
|
|
DEBUGF 1, "FAILED\n"
|
|
jmp $
|
|
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
|
|
;
|
|
;***************************************************************************
|
|
align 4
|
|
transmit:
|
|
|
|
cmp dword [esp+8], MAX_ETH_FRAME_SIZE
|
|
ja .error
|
|
|
|
cmp dword [esp+8], 60
|
|
jb .error
|
|
|
|
movzx ecx, [device.cur_tx]
|
|
shl ecx, 4
|
|
mov ecx, [device.txd+ecx]
|
|
|
|
;; TODO: check if desc is empty (for example: check for eax, 0x6200000 at [ecx+4]
|
|
;;; or: count number of available descriptors
|
|
|
|
mov eax, [esp+4]
|
|
mov dword [ecx + 12], eax
|
|
GetRealAddr
|
|
mov dword [ecx + 8], eax
|
|
|
|
mov eax, [esp+8]
|
|
and eax, DSIZE
|
|
or eax, 0x80000000 ; card owns descriptor
|
|
mov dword [ecx + 4], eax
|
|
|
|
; update stats
|
|
inc [device.packets_tx]
|
|
add dword [device.bytes_tx], ecx
|
|
adc dword [device.bytes_tx+4], 0
|
|
|
|
.finish:
|
|
xor eax, eax
|
|
ret 8
|
|
|
|
.error:
|
|
stdcall KernelFree, [esp+4]
|
|
or eax, -1
|
|
ret 8
|
|
|
|
|
|
; End of code
|
|
|
|
align 4 ; Place all initialised data here
|
|
|
|
devices dd 0
|
|
|
|
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 ; end of list
|
|
|
|
version dd (DRIVER_VERSION 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
|
|
|
|
device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling
|
|
|