1139 lines
25 KiB
NASM
1139 lines
25 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; I8255x (Intel eepro 100) driver for KolibriOS ;;
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;; ;;
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;; Written by hidnplayr@kolibrios.org ;;
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;; ;;
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;; v0.0 - march 2009 ;;
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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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;; current status (september 2009) - INCOMPLETE ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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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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OS_BASE equ 0;
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new_app_base equ 0x60400000
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PROC_BASE equ OS_BASE+0x0080000
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public START
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public service_proc
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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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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
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.bytes_tx dd ?
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.bytes_rx dd ?
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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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; 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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.status dw ? ;
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.command dw ? ;
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.link dd ? ;
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.rx_buf_addr dd ? ;
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.count dw ? ;
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.size dw ? ;
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.packet dd ? ;
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.eeprom_data rd 16
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.txfd:
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.txfd_status dw ?
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.txfd_command dw ?
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.txfd_link dd ?
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.txfd_tx_desc_addr dd ?
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.txfd_count dd ?
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.txfd_tx_buf_addr0 dd ?
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.txfd_tx_buf_size0 dd ?
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.txfd_tx_buf_addr1 dd ?
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.txfd_tx_buf_size1 dd ?
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.size_:
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}
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virtual at 0
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device ETH_DEVICE
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end virtual
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lstats:
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tx_good_frames: dd 0
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tx_coll16_errs: dd 0
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tx_late_colls: dd 0
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tx_underruns: dd 0
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tx_lost_carrier: dd 0
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tx_deferred: dd 0
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tx_one_colls: dd 0
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tx_multi_colls: dd 0
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tx_total_colls: dd 0
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rx_good_frames: dd 0
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rx_crc_errs: dd 0
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rx_align_errs: dd 0
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rx_resource_errs: dd 0
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rx_overrun_errs: dd 0
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rx_colls_errs: dd 0
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rx_runt_errs: dd 0
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done_marker: dd 0
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confcmd:
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.status: dw 0
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.command: dw 0
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.link: dd 0
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confcmd_data: db 22, 0x08, 0, 0, 0, 0x80, 0x32, 0x03, 1
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db 0, 0x2e, 0, 0x60, 0, 0xf2, 0x48, 0, 0x40, 0xf2
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db 0x80, 0x3f, 0x05
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MAX_I8255x equ 16 ; Max number of devices this driver may handle
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; PCI Bus defines
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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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;/***********************************************************************/
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;/* I82557 related defines */
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;/***********************************************************************/
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; Serial EEPROM section.
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; A "bit" grungy, but we work our way through bit-by-bit :->.
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; EEPROM_Ctrl bits.
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EE_SHIFT_CLK equ 0x01 ; EEPROM shift clock.
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EE_CS equ 0x02 ; EEPROM chip select.
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EE_DATA_WRITE equ 0x04 ; EEPROM chip data in.
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EE_DATA_READ equ 0x08 ; EEPROM chip data out.
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EE_WRITE_0 equ 0x4802
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EE_WRITE_1 equ 0x4806
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EE_ENB equ 0x4802
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; The EEPROM commands include the alway-set leading bit.
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EE_READ_CMD equ 6
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; The SCB accepts the following controls for the Tx and Rx units:
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CU_START equ 0x0010
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CU_RESUME equ 0x0020
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CU_STATSADDR equ 0x0040
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CU_SHOWSTATS equ 0x0050 ; Dump statistics counters.
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CU_CMD_BASE equ 0x0060 ; Base address to add to add CU commands.
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CU_DUMPSTATS equ 0x0070 ; Dump then reset stats counters.
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RX_START equ 0x0001
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RX_RESUME equ 0x0002
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RX_ABORT equ 0x0004
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RX_ADDR_LOAD equ 0x0006
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RX_RESUMENR equ 0x0007
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INT_MASK equ 0x0100
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DRVR_INT equ 0x0200 ; Driver generated interrupt.
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section '.flat' code readable align 16
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; proc START ;;
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;; ;;
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;; (standard driver proc) ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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proc START stdcall, state:dword
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cmp [state], 1
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jne .exit
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.entry:
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DEBUGF 1,"Loading I8255x driver\n"
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stdcall RegService, my_service, service_proc
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ret
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.fail:
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.exit:
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xor eax, eax
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ret
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endp
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; proc SERVICE_PROC ;;
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;; ;;
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;; (standard driver proc) ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 4
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proc service_proc stdcall, ioctl:dword
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mov edx, [ioctl]
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mov eax, [ebx+IOCTL.io_code]
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;------------------------------------------------------
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cmp eax, 0 ;SRV_GETVERSION
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jne @F
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cmp [edx+IOCTL.out_size], 4
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jl .fail
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mov eax, [edx+IOCTL.output]
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mov [eax], dword API_VERSION
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xor eax, eax
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ret
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;------------------------------------------------------
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@@:
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cmp eax, 1 ;SRV_HOOK
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jne .fail
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mov eax, [esp]
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DEBUGF 1,"esp=%x [esp]=%x\n",esp,eax
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cmp [edx + IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
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jl .fail
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mov eax, [edx + IOCTL.input]
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cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given
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jne .fail ; other types arent supported for this card yet
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; check if the device is already listed
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mov esi, I8255x_LIST
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mov ecx, [I8255x_DEV]
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test ecx, ecx
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jz .firstdevice
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mov eax, [edx+IOCTL.input] ; get the pci bus and device numbers
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mov bx , [eax+1] ;
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.nextdevice:
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DEBUGF 1,"1"
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lodsd
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cmp bx , word [eax + device.pci_bus] ; compare with pci and device num in RTL8139 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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loop .nextdevice
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; This device doesnt have its own eth_device structure yet, lets create one
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.firstdevice:
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cmp [I8255x_DEV], MAX_I8255x ; First check if the driver can handle one more card
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jge .fail
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push edx
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stdcall KernelAlloc, device.size ; Allocate the buffer for eth_device structure
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pop edx
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test eax, eax
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jz .fail
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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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; Fill in the direct call addresses into the struct
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mov dword [ebx+device.reset], reset
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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], devicename
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; save the pci bus and device numbers
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mov eax, [edx+IOCTL.input]
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mov cl , [eax+1]
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mov [ebx+device.pci_bus], cl
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mov cl , [eax+2]
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mov [ebx+device.pci_dev], cl
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; 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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movzx eax, byte [ebx+device.pci_bus]
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movzx ecx, byte [ebx+device.pci_dev]
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push edx ecx
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stdcall PciRead16, eax ,ecx ,edx
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pop ecx edx
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mov [ebx+device.io_addr], eax
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and eax, PCI_BASE_ADDRESS_IO_MASK
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test eax, eax
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jz .inc_reg
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mov eax, [ebx+device.io_addr]
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and eax, PCI_BASE_ADDRESS_SPACE_IO
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test eax, eax
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jz .inc_reg
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mov eax, [ebx+device.io_addr]
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and eax, PCI_BASE_ADDRESS_IO_MASK
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mov [ebx+device.io_addr], eax
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jmp .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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.got_io:
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; We've found the io address, find IRQ now
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movzx eax, byte [ebx+device.pci_bus]
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movzx ecx, byte [ebx+device.pci_dev]
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push ebx
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stdcall PciRead8, eax ,ecx ,0x3c ; 0x3c is the offset where irq can be found
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pop ebx
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mov byte [ebx+device.irq_line], al
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DEBUGF 1,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
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[ebx+device.pci_dev]:1,[ebx+device.pci_bus]:1,[ebx+device.irq_line]:1,[ebx+device.io_addr]:4
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; Allocate the Receive buffer
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stdcall KernelAlloc, dword (RX_BUFFER_SIZE+MAX_ETH_FRAME_SIZE)
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test eax, eax
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jz .err
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mov [ebx+device.rx_buffer], eax ; Save the address to it into the device struct
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; Now, Clear the allocated buffer
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cld
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mov edi, eax
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mov ecx, (RX_BUFFER_SIZE)/4 ; divide by 4 because we are going to use DWORD
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xor eax, eax
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rep stosd
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; Allocate the Transmit Buffer
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stdcall KernelAlloc, dword (TX_BUFFER_SIZE)
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test eax, eax
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jz .err
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mov [ebx+device.tx_buffer], eax
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; This one needs to be cleared too..
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mov edi, eax
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mov ecx, (TX_BUFFER_SIZE)/4
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xor eax, eax
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rep stosd
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; Ok, the eth_device structure is ready, let's probe the device
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call probe ; this function will output in eax
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test eax, eax
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jnz .err ; If an error occured, exit
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mov eax, [I8255x_DEV] ; Add the device structure to our device list
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mov [I8255x_LIST+4*eax], ebx ; (IRQ handler uses this list to find device)
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inc [I8255x_DEV] ;
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jmp EthRegDev ; Register the device to kernel (ebx points to device struct)
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; Notice the jump instead of call, it is the same as
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;
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; call EthRegDev
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; ret
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;
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; Also notice that the value EthRegDev returned in eax, will be returned to
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; the caller application
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; 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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DEBUGF 1,"Trying to find device number of already registered device\n"
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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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DEBUGF 1,"Kernel says: %u\n", eax
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ret
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; If an error occured, remove all allocated data and exit (returning -1 in eax)
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.err:
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stdcall KernelFree, dword [ebx+device.rx_buffer]
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stdcall KernelFree, dword [ebx+device.tx_buffer]
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stdcall KernelFree, ebx
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.fail:
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or eax, -1
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ret
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;------------------------------------------------------
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endp
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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 (RTL8139_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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; Function
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; I8255x_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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;
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;***************************************************************************
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probe:
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DEBUGF 1," Probing i8255x device: "
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; enable the device
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movzx eax, byte [ebx+device.pci_bus]
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movzx ecx, byte [ebx+device.pci_dev]
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stdcall PciRead16, eax ,ecx ,PCI_REG_CMD
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mov cx , ax
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or cx , 0x05
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movzx eax, byte [ebx+device.pci_bus]
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movzx edx, byte [ebx+device.pci_dev]
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stdcall PciWrite16, eax ,edx ,PCI_REG_CMD, ecx
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; do something else TODO
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mov ebx, 0x6000000
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mov ecx, 27
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call do_eeprom_cmd
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and eax, 0xffe0000
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cmp eax, 0xffe0000
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je bige
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mov ebx, 0x1800000
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mov ecx, 0x40
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jmp doread
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bige:
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mov ebx, 0x6000000
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mov ecx, 0x100
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doread:
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; do-eeprom-cmd will destroy all registers
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; we have eesize in ecx
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; read_cmd in ebx
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; Ignore full eeprom - just load the mac address
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mov ecx, 0
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drlp:
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push ecx ; save count
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push ebx
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mov eax, ecx
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shl eax, 16
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or ebx, eax
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mov ecx, 27
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call do_eeprom_cmd
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pop ebx
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pop ecx
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mov edx, ecx
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shl edx, 2
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mov esi, eeprom_data
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add esi, edx
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mov [esi], eax
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inc ecx
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cmp ecx, 16
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jne drlp
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; OK, we have the MAC address.
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;***************************************************************************
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; Function
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; I8255x_reset
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; Description
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; Place the chip (ie, the ethernet card) into a virgin state
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; No inputs
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; All registers destroyed
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;
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;***************************************************************************
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reset:
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; Now reset the card
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mov edx, [ebx+device.io_addr]
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add dx, 8 ; SCBPort
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xor eax, eax ; The reset cmd == 0
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out dx, eax
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mov esi, 10
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call delay_ms ; Give the card time to warm up.
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mov eax, lstats
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mov edx, [ebx+device.io_addr]
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add edx, 4 ; SCBPointer
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out dx, eax
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mov eax, 0x0140 ; INT_MASK | CU_STATSADDR
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mov edx, [ebx+device.io_addr]
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add edx, 2 ; SCBCmd
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out dx, ax
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call wait_for_cmd_done
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mov eax, 0
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mov edx, [ebx+device.io_addr]
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add edx, 4 ; SCBPointer
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out dx, eax
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mov eax, 0x0106 ; INT_MASK | RX_ADDR_LOAD
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mov edx, [ebx+device.io_addr]
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add edx, 2 ; SCBCmd
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out dx, ax
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call wait_for_cmd_done
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; build rxrd structure
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mov ax, 0x0001
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mov [ebx+device.status], ax
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mov ax, 0x0000
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mov [rxfd_command], ax
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|
|
|
mov eax, rxfd_status
|
|
sub eax, OS_BASE
|
|
mov [ebx+device.link], eax
|
|
|
|
mov eax, Ether_buffer
|
|
sub eax, OS_BASE
|
|
mov [ebx+device.rx_buf_addr], eax
|
|
|
|
mov ax, 0
|
|
mov [ebx+device.count], ax
|
|
|
|
mov ax, 1528
|
|
mov [ebx+device.size], ax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 4 ; SCBPointer
|
|
|
|
mov eax, rxfd_status
|
|
sub eax, OS_BASE
|
|
out dx, eax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 2 ; SCBCmd
|
|
|
|
mov ax, 0x0101 ; INT_MASK | RX_START
|
|
out dx, ax
|
|
|
|
call wait_for_cmd_done
|
|
|
|
; start the receiver
|
|
|
|
mov ax, 0
|
|
mov [ebx+device.status], ax
|
|
|
|
mov ax, 0xc000
|
|
mov [ebx+device.command], ax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 4 ; SCBPointer
|
|
|
|
mov eax, rxfd_status
|
|
sub eax, OS_BASE
|
|
out dx, eax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 2 ; SCBCmd
|
|
|
|
mov ax, 0x0101 ; INT_MASK | RX_START
|
|
out dx, ax
|
|
|
|
; Init TX Stuff
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 4 ; SCBPointer
|
|
|
|
mov eax, 0
|
|
out dx, eax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 2 ; SCBCmd
|
|
|
|
mov ax, 0x0160 ; INT_MASK | CU_CMD_BASE
|
|
out dx, ax
|
|
|
|
call wait_for_cmd_done
|
|
|
|
; Set TX Base address
|
|
|
|
; First, set up confcmd values
|
|
|
|
mov ax, 2
|
|
mov [confcmd_command], ax
|
|
mov eax, txfd
|
|
sub eax, OS_BASE
|
|
mov [confcmd_link], eax
|
|
|
|
mov ax, 1
|
|
mov [txfd_command], ax ; CmdIASetup
|
|
|
|
mov ax, 0
|
|
mov [txfd_status], ax
|
|
|
|
mov eax, confcmd
|
|
sub eax, OS_BASE
|
|
mov [txfd_link], eax
|
|
|
|
|
|
|
|
; ETH_ALEN is 6 bytes
|
|
|
|
mov esi, eeprom_data
|
|
mov edi, node_addr
|
|
mov ecx, 3
|
|
|
|
drp000:
|
|
|
|
mov eax, [esi]
|
|
mov [edi], al
|
|
shr eax, 8
|
|
inc edi
|
|
mov [edi], al
|
|
inc edi
|
|
add esi, 4
|
|
loop drp000
|
|
|
|
; Hard code your MAC address into node_addr at this point,
|
|
; If you cannot read the MAC address from the eeprom in the previous step.
|
|
; You also have to write the mac address into txfd_tx_desc_addr, rather
|
|
; than taking data from eeprom_data
|
|
|
|
mov esi, eeprom_data
|
|
mov edi, txfd_tx_desc_addr
|
|
mov ecx, 3
|
|
|
|
drp001:
|
|
|
|
mov eax, [esi]
|
|
mov [edi], al
|
|
shr eax, 8
|
|
inc edi
|
|
mov [edi], al
|
|
inc edi
|
|
add esi, 4
|
|
loop drp001
|
|
|
|
mov esi, eeprom_data + (6 * 4)
|
|
mov eax, [esi]
|
|
shr eax, 8
|
|
and eax, 0x3f
|
|
cmp eax, 4 ; DP83840
|
|
je drp002
|
|
cmp eax, 10 ; DP83840A
|
|
je drp002
|
|
jmp drp003
|
|
|
|
drp002:
|
|
|
|
mov ebx, [esi]
|
|
and ebx, 0x1f
|
|
push ebx
|
|
mov ecx, 23
|
|
call mdio_read
|
|
pop ebx
|
|
or eax, 0x0422
|
|
mov ecx, 23
|
|
mov edx, eax
|
|
call mdio_write
|
|
|
|
drp003:
|
|
|
|
mov ax, 0x4002 ; Cmdsuspend | CmdConfigure
|
|
mov [confcmd_command], ax
|
|
mov ax, 0
|
|
mov [confcmd_status], ax
|
|
mov eax, txfd
|
|
mov [confcmd_link], eax
|
|
mov ebx, confcmd_data
|
|
mov al, 0x88 ; fifo of 8 each
|
|
mov [ebx + 1], al
|
|
mov al, 0
|
|
mov [ebx + 4], al
|
|
mov al, 0x80
|
|
mov [ebx + 5], al
|
|
mov al, 0x48
|
|
mov [ebx + 15], al
|
|
mov al, 0x80
|
|
mov [ebx + 19], al
|
|
mov al, 0x05
|
|
mov [ebx + 21], al
|
|
|
|
mov eax, txfd
|
|
sub eax, OS_BASE
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 4 ; SCBPointer
|
|
out dx, eax
|
|
|
|
mov eax, 0x0110 ; INT_MASK | CU_START
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 2 ; SCBCmd
|
|
out dx, ax
|
|
|
|
call wait_for_cmd_done
|
|
|
|
jmp skip
|
|
|
|
; wait for thing to start
|
|
drp004:
|
|
|
|
mov ax, [txfd_status]
|
|
test ax, ax
|
|
jz drp004
|
|
|
|
skip:
|
|
; Indicate that we have successfully reset the card
|
|
|
|
xor eax, eax
|
|
|
|
ret
|
|
|
|
|
|
;***************************************************************************
|
|
; Function
|
|
; I8255x_transmit
|
|
;
|
|
; Description
|
|
; Transmits a packet of data via the ethernet card
|
|
; Pointer to 48 bit destination address in edi
|
|
; Type of packet in bx
|
|
; size of packet in ecx
|
|
; pointer to packet data in esi
|
|
;
|
|
;***************************************************************************
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Transmit ;;
|
|
;; ;;
|
|
;; In: buffer pointer in [esp] ;;
|
|
;; size of buffer in [esp+4] ;;
|
|
;; pointer to device structure in ebx ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
transmit:
|
|
|
|
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp],[esp+4]
|
|
mov eax, [esp]
|
|
DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\
|
|
[eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\
|
|
[eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\
|
|
[eax+13]:2,[eax+12]:2
|
|
|
|
cmp dword [esp+4], MAX_ETH_FRAME_SIZE
|
|
jg .finish ; packet is too long
|
|
cmp dword [esp+4], 60
|
|
jl .finish ; packet is too short
|
|
|
|
; mov [hdr_type], bx
|
|
|
|
; mov eax, [edi]
|
|
; mov [hdr_dst_addr], eax
|
|
; mov ax, [edi+4]
|
|
; mov [hdr_dst_addr+4], ax
|
|
|
|
; mov eax, [node_addr]
|
|
; mov [hdr_src_addr], eax
|
|
; mov ax, [node_addr+4]
|
|
; mov [hdr_src_addr+4], ax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
in ax, dx
|
|
and ax, 0xfc00
|
|
out dx, ax
|
|
|
|
mov [ebx+device.txfd_status], 0
|
|
mov [ebx+device.txfd_command], 0x400C ; Cmdsuspend | CmdTx | CmdTxFlex
|
|
lea eax, [ebx+device.txfd]
|
|
mov [txfd_link], eax
|
|
mov [txfd_count], 0x02208000
|
|
mov eax, txfd_tx_buf_addr0
|
|
call GetPgAddr
|
|
mov [txfd_tx_desc_addr], eax
|
|
mov eax, hdr
|
|
call GetPgAddr
|
|
mov [txfd_tx_buf_addr0], eax
|
|
mov eax, 14 ; sizeof hdr
|
|
mov [txfd_tx_buf_size0], eax
|
|
|
|
; Copy the buffer address and size in
|
|
; mov eax, esi
|
|
; sub eax, OS_BASE
|
|
; mov [txfd_tx_buf_addr1], eax
|
|
; mov eax, ecx
|
|
; mov [txfd_tx_buf_size1], eax
|
|
|
|
mov eax, ebx
|
|
call GetPgAddr
|
|
add eax, device.txfd
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 4 ; SCBPointer
|
|
out dx, eax
|
|
|
|
mov ax, 0x0110 ; INT_MASK | CU_START
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 2 ; SCBCmd
|
|
out dx, ax
|
|
|
|
call wait_for_cmd_done
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
in ax, dx
|
|
|
|
I8t_001:
|
|
|
|
mov ax, [ebx+device.txfd_status]
|
|
cmp ax, 0
|
|
je I8t_001
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
in ax, dx
|
|
|
|
.finish:
|
|
|
|
ret
|
|
|
|
|
|
|
|
;***************************************************************************
|
|
; Function
|
|
; I8255x_poll
|
|
;
|
|
; Description
|
|
; Polls the ethernet card for a received packet
|
|
; Received data, if any, ends up in Ether_buffer
|
|
;
|
|
;***************************************************************************
|
|
I8255x_poll:
|
|
|
|
mov ax, 0 ; assume no data
|
|
mov [eth_rx_data_len], ax
|
|
|
|
mov ax, [rxfd_status]
|
|
cmp ax, 0
|
|
je i8p_exit
|
|
|
|
mov ax, 0
|
|
mov [rxfd_status], ax
|
|
|
|
mov ax, 0xc000
|
|
mov [rxfd_command], ax
|
|
|
|
mov edx, [io_addr]
|
|
add edx, 4 ; SCBPointer
|
|
|
|
mov eax, rxfd_status
|
|
sub eax, OS_BASE
|
|
out dx, eax
|
|
|
|
mov edx, [ebx+device.io_addr]
|
|
add edx, 2 ; SCBCmd
|
|
|
|
mov ax, 0x0101 ; INT_MASK | RX_START
|
|
out dx, ax
|
|
|
|
call wait_for_cmd_done
|
|
|
|
mov esi, rxfd_packet
|
|
mov edi, Ether_buffer
|
|
mov ecx, 1518
|
|
cld
|
|
rep movsb
|
|
|
|
mov ax, [rxfd_count]
|
|
and ax, 0x3fff
|
|
mov [eth_rx_data_len], ax
|
|
|
|
i8p_exit:
|
|
ret
|
|
|
|
|
|
|
|
|
|
;***************************************************************************
|
|
; Function
|
|
; wait_for_cmd_done
|
|
;
|
|
; Description
|
|
; waits for the hardware to complete a command
|
|
; port address in edx
|
|
;
|
|
; al destroyed
|
|
;***************************************************************************
|
|
|
|
wait_for_cmd_done:
|
|
|
|
; mov edx, [ebx + device.io_addr]
|
|
|
|
.loop:
|
|
in al , dx
|
|
test al , al
|
|
jnz .loop
|
|
|
|
ret
|
|
|
|
|
|
|
|
;***************************************************************************
|
|
; Function
|
|
; mdio_read
|
|
;
|
|
; Description
|
|
; This probably reads a register in the "physical media interface chip"
|
|
; Phy_id in ebx NOW EAX
|
|
; location in ecx
|
|
;
|
|
; Data returned in eax
|
|
;
|
|
;***************************************************************************
|
|
|
|
mdio_read:
|
|
|
|
mov edx, [ebx + device.io_addr]
|
|
add edx, 16 ; SCBCtrlMDI
|
|
|
|
; mov eax, 0x08000000
|
|
; shl ecx, 16
|
|
; or eax, ecx
|
|
; shl ebx, 21
|
|
; or eax, ebx
|
|
;
|
|
shl ecx, 16 ;
|
|
shl eax, 21 ;
|
|
or eax, ecx ;
|
|
or eax, 0x08000000 ;
|
|
out dx , eax ;
|
|
;
|
|
mrlp:
|
|
call delay_us
|
|
in eax, dx
|
|
mov ecx, eax
|
|
and ecx, 0x10000000
|
|
jz mrlp
|
|
|
|
and eax, 0xffff
|
|
ret
|
|
|
|
|
|
|
|
;***************************************************************************
|
|
; Function
|
|
; mdio_write
|
|
;
|
|
; Description
|
|
; This probably writes a register in the "physical media interface chip"
|
|
; Phy_id in ebx NOW EAX
|
|
; location in ecx
|
|
; data in edx
|
|
; Data returned in eax
|
|
;
|
|
;***************************************************************************
|
|
|
|
mdio_write:
|
|
|
|
; mov eax, 0x04000000
|
|
; shl ecx, 16
|
|
; or eax, ecx
|
|
; shl ebx, 21
|
|
; or eax, ebx
|
|
; or eax, edx
|
|
|
|
shl ecx, 16 ;
|
|
shl ebx, 21 ;
|
|
or eax, ecx ;
|
|
or eax, edx ;
|
|
or eax, 0x04000000 ;
|
|
|
|
mov edx, [ebx + device.io_addr]
|
|
add edx, 16 ; SCBCtrlMDI
|
|
out dx, eax
|
|
|
|
mwlp:
|
|
call delay_us
|
|
in eax, dx
|
|
mov ecx, eax
|
|
and ecx, 0x10000000
|
|
jz mwlp
|
|
|
|
and eax, 0xffff
|
|
ret
|
|
|
|
|
|
;***************************************************************************
|
|
; Function
|
|
; do_eeprom_cmd
|
|
;
|
|
; Description
|
|
; writes a cmd to the ethernet cards eeprom, by bit bashing
|
|
; cmd in ebx NOW EAX
|
|
; cmd length in ecx
|
|
; return in eax
|
|
;***************************************************************************
|
|
|
|
do_eeprom_cmd:
|
|
|
|
push eax
|
|
mov edx, [ebx + device.io_addr]
|
|
add dx, 14 ; the value SCBeeprom
|
|
|
|
mov ax, EE_ENB
|
|
out dx, ax
|
|
call delay_us
|
|
|
|
mov ax, 0x4803 ; EE_ENB | EE_SHIFT_CLK
|
|
out dx, ax
|
|
call delay_us
|
|
|
|
; dx holds ee_addr
|
|
; ecx holds count
|
|
; eax holds cmd
|
|
xor edi, edi ; this will be the receive data
|
|
|
|
dec_001:
|
|
|
|
mov esi, 1
|
|
|
|
dec ecx
|
|
shl esi, cl
|
|
inc ecx
|
|
and esi, [esp]
|
|
mov eax, EE_WRITE_0 ; I am assuming this doesnt affect the flags..
|
|
cmp esi, 0
|
|
jz dec_002
|
|
mov eax, EE_WRITE_1
|
|
|
|
dec_002:
|
|
|
|
out dx, ax
|
|
call delay_us
|
|
|
|
or ax, EE_SHIFT_CLK
|
|
out dx, ax
|
|
call delay_us
|
|
|
|
shl edi,1
|
|
|
|
in ax, dx
|
|
and ax, EE_DATA_READ
|
|
cmp ax,0
|
|
jz dec_003
|
|
inc edi
|
|
|
|
dec_003:
|
|
|
|
loop dec_001
|
|
|
|
mov ax, EE_ENB
|
|
out dx, ax
|
|
call delay_us
|
|
|
|
mov ax, 0x4800
|
|
out dx, ax
|
|
call delay_us
|
|
|
|
add esp, 4
|
|
mov eax, edi
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
; End of code
|
|
|
|
align 4 ; Place all initialised data here
|
|
|
|
I8255x_DEV dd 0
|
|
version dd (5 shl 16) or (API_VERSION and 0xFFFF)
|
|
my_service db 'I8255x',0 ; max 16 chars include zero
|
|
devicename db 'Intel Etherexpress pro/100',0
|
|
|
|
|
|
|
|
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
|
|
|
|
I8255x_LIST rd I8255x ; This list contains all pointers to device structures the driver is handling
|
|
|