forked from KolibriOS/kolibrios
1705 lines
52 KiB
NASM
1705 lines
52 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; DEC 21x4x driver for KolibriOS ;;
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;; ;;
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;; Based on dec21140.Asm from Solar OS by ;;
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;; Eugen Brasoveanu, ;;
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;; Ontanu Bogdan Valentin ;;
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;; ;;
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;; Written by hidnplayr@kolibrios.org ;;
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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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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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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RX_DES_COUNT = 4 ; no of RX descriptors, must be power of 2
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RX_BUFF_SIZE = 2048 ; size of buffer for each descriptor, must be multiple of 4 and <= 2048 TDES1_TBS1_MASK
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TX_DES_COUNT = 4 ; no of TX descriptors, must be power of 2
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TX_BUFF_SIZE = 2048 ; size of buffer for each descriptor, used for memory allocation only
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DEBUG = 1
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__DEBUG__ = 1
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__DEBUG_LEVEL__ = 2
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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 service_proc
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public version
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virtual at ebx
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device:
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ETH_DEVICE
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.rx_p_des dd ? ; descriptors ring with received packets
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.tx_p_des dd ? ; descriptors ring with 'to transmit' packets
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.tx_free_des dd ? ; Tx descriptors available
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.tx_wr_des dd ? ; Tx current descriptor to write data to
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.tx_rd_des dd ? ; Tx current descriptor to read TX completion
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.rx_crt_des dd ? ; Rx current descriptor
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.io_addr dd ?
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.pci_bus dd ?
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.pci_dev dd ?
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.irq_line db ?
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.size = $ - device
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end virtual
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;-------------------------------------------
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; configuration registers
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;-------------------------------------------
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CFCS = 4 ; configuration and status register
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CSR0 = 0x00 ; Bus mode
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CSR1 = 0x08 ; Transmit Poll Command
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CSR2 = 0x10 ; Receive Poll Command
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CSR3 = 0x18 ; Receive list base address
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CSR4 = 0x20 ; Transmit list base address
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CSR5 = 0x28 ; Status
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CSR6 = 0x30 ; Operation mode
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CSR7 = 0x38 ; Interrupt enable
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CSR8 = 0x40 ; Missed frames and overflow counter
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CSR9 = 0x48 ; Boot ROM, serial ROM, and MII management
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CSR10 = 0x50 ; Boot ROM programming address
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CSR11 = 0x58 ; General-purpose timer
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CSR12 = 0x60 ; General-purpose port
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CSR13 = 0x68
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CSR14 = 0x70
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CSR15 = 0x78 ; Watchdog timer
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;--------bits/commands of CSR0-------------------
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CSR0_RESET = 1b
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CSR0_WIE = 1 shl 24 ; Write and Invalidate Enable
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CSR0_RLE = 1 shl 23 ; PCI Read Line Enable
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CSR0_RML = 1 shl 21 ; PCI Read Multiple
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CSR0_CACHEALIGN_NONE = 00b shl 14
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CSR0_CACHEALIGN_32 = 01b shl 14
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CSR0_CACHEALIGN_64 = 10b shl 14
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CSR0_CACHEALIGN_128 = 11b shl 14
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; using values from linux driver..
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CSR0_DEFAULT = CSR0_WIE + CSR0_RLE + CSR0_RML + CSR0_CACHEALIGN_NONE
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;------- CSR5 -STATUS- bits --------------------------------
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CSR5_TI = 1 shl 0 ; Transmit interupt - frame transmition completed
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CSR5_TPS = 1 shl 1 ; Transmit process stopped
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CSR5_TU = 1 shl 2 ; Transmit Buffer unavailable
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CSR5_TJT = 1 shl 3 ; Transmit Jabber Timeout (transmitter had been excessively active)
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CSR5_UNF = 1 shl 5 ; Transmit underflow - FIFO underflow
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CSR5_RI = 1 shl 6 ; Receive Interrupt
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CSR5_RU = 1 shl 7 ; Receive Buffer unavailable
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CSR5_RPS = 1 shl 8 ; Receive Process stopped
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CSR5_RWT = 1 shl 9 ; Receive Watchdow Timeout
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CSR5_ETI = 1 shl 10 ; Early transmit Interrupt
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CSR5_GTE = 1 shl 11 ; General Purpose Timer Expired
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CSR5_FBE = 1 shl 13 ; Fatal bus error
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CSR5_ERI = 1 shl 14 ; Early receive Interrupt
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CSR5_AIS = 1 shl 15 ; Abnormal interrupt summary
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CSR5_NIS = 1 shl 16 ; normal interrupt summary
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CSR5_RS_SH = 17 ; Receive process state -shift
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CSR5_RS_MASK = 111b ; -mask
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CSR5_TS_SH = 20 ; Transmit process state -shift
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CSR5_TS_MASK = 111b ; -mask
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CSR5_EB_SH = 23 ; Error bits -shift
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CSR5_EB_MASK = 111b ; Error bits -mask
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;CSR5 TS values
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CSR5_TS_STOPPED = 000b
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CSR5_TS_RUNNING_FETCHING_DESC = 001b
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CSR5_TS_RUNNING_WAITING_TX = 010b
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CSR5_TS_RUNNING_READING_BUFF = 011b
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CSR5_TS_RUNNING_SETUP_PCKT = 101b
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CSR5_TS_SUSPENDED = 110b
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CSR5_TS_RUNNING_CLOSING_DESC = 111b
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;------- CSR6 -OPERATION MODE- bits --------------------------------
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CSR6_HP = 1 shl 0 ; Hash/Perfect Receive Filtering mode
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CSR6_SR = 1 shl 1 ; Start/Stop receive
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CSR6_HO = 1 shl 2 ; Hash only Filtering mode
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CSR6_PB = 1 shl 3 ; Pass bad frames
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CSR6_IF = 1 shl 4 ; Inverse filtering
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CSR6_SB = 1 shl 5 ; Start/Stop backoff counter
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CSR6_PR = 1 shl 6 ; Promiscuos mode -default after reset
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CSR6_PM = 1 shl 7 ; Pass all multicast
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CSR6_F = 1 shl 9 ; Full Duplex mode
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CSR6_OM_SH = 10 ; Operating Mode -shift
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CSR6_OM_MASK = 11b ; -mask
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CSR6_FC = 1 shl 12 ; Force Collision Mode
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CSR6_ST = 1 shl 13 ; Start/Stop Transmission Command
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CSR6_TR_SH = 14 ; Threshold Control -shift
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CSR6_TR_MASK = 11b ; -mask
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CSR6_CA = 1 shl 17 ; Capture Effect Enable
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CSR6_PS = 1 shl 18 ; Port select SRL / MII/SYM
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CSR6_HBD = 1 shl 19 ; Heartbeat Disable
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CSR6_SF = 1 shl 21 ; Store and Forward -transmit full packet only
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CSR6_TTM = 1 shl 22 ; Transmit Threshold Mode -
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CSR6_PCS = 1 shl 23 ; PCS active and MII/SYM port operates in symbol mode
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CSR6_SCR = 1 shl 24 ; Scrambler Mode
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CSR6_MBO = 1 shl 25 ; Must Be One
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CSR6_RA = 1 shl 30 ; Receive All
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CSR6_SC = 1 shl 31 ; Special Capture Effect Enable
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;------- CSR7 -INTERRUPT ENABLE- bits --------------------------------
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CSR7_TI = 1 shl 0 ; transmit Interrupt Enable (set with CSR7<16> & CSR5<0> )
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CSR7_TS = 1 shl 1 ; transmit Stopped Enable (set with CSR7<15> & CSR5<1> )
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CSR7_TU = 1 shl 2 ; transmit buffer underrun Enable (set with CSR7<16> & CSR5<2> )
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CSR7_TJ = 1 shl 3 ; transmit jabber timeout enable (set with CSR7<15> & CSR5<3> )
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CSR7_UN = 1 shl 5 ; underflow Interrupt enable (set with CSR7<15> & CSR5<5> )
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CSR7_RI = 1 shl 6 ; receive Interrupt enable (set with CSR7<16> & CSR5<5> )
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CSR7_RU = 1 shl 7 ; receive buffer unavailable enable (set with CSR7<15> & CSR5<7> )
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CSR7_RS = 1 shl 8 ; Receive stopped enable (set with CSR7<15> & CSR5<8> )
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CSR7_RW = 1 shl 9 ; receive watchdog timeout enable (set with CSR7<15> & CSR5<9> )
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CSR7_ETE = 1 shl 10 ; Early transmit Interrupt enable (set with CSR7<15> & CSR5<10> )
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CSR7_GPT = 1 shl 11 ; general purpose timer enable (set with CSR7<15> & CSR5<11> )
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CSR7_FBE = 1 shl 13 ; Fatal bus error enable (set with CSR7<15> & CSR5<13> )
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CSR7_ERE = 1 shl 14 ; Early receive enable (set with CSR7<16> & CSR5<14> )
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CSR7_AI = 1 shl 15 ; Abnormal Interrupt Summary Enable (enables CSR5<0,3,7,8,9,10,13>)
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CSR7_NI = 1 shl 16 ; Normal Interrup Enable (enables CSR5<0,2,6,11,14>)
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CSR7_DEFAULT = CSR7_TI + CSR7_TS + CSR7_RI + CSR7_RS + CSR7_TU + CSR7_TJ + CSR7_UN + \
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CSR7_RU + CSR7_RW + CSR7_FBE + CSR7_AI + CSR7_NI
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;----------- descriptor structure ---------------------
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struc DES {
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.status dd ? ; bit 31 is 'own' and rest is 'status'
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.length dd ? ; control bits + bytes-count buffer 1 + bytes-count buffer 2
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.buffer1 dd ? ; pointer to buffer1
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.buffer2 dd ? ; pointer to buffer2 or in this case to next descriptor, as we use a chained structure
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.virtaddr dd ?
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.size = 64 ; 64, for alignment purposes
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}
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virtual at 0
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DES DES
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end virtual
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;common to Rx and Tx
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DES0_OWN = 1 shl 31 ; if set, the NIC controls the descriptor, otherwise driver 'owns' the descriptors
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;receive
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RDES0_ZER = 1 shl 0 ; must be 0 if legal length :D
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RDES0_CE = 1 shl 1 ; CRC error, valid only on last desc (RDES0<8>=1)
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RDES0_DB = 1 shl 2 ; dribbling bit - not multiple of 8 bits, valid only on last desc (RDES0<8>=1)
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RDES0_RE = 1 shl 3 ; Report on MII error.. i dont realy know what this means :P
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RDES0_RW = 1 shl 4 ; received watchdog timer expiration - must set CSR5<9>, valid only on last desc (RDES0<8>=1)
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RDES0_FT = 1 shl 5 ; frame type: 0->IEEE802.0 (len<1500) 1-> ETHERNET frame (len>1500), valid only on last desc (RDES0<8>=1)
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RDES0_CS = 1 shl 6 ; Collision seen, valid only on last desc (RDES0<8>=1)
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RDES0_TL = 1 shl 7 ; Too long(>1518)-NOT AN ERROR, valid only on last desc (RDES0<8>=1)
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RDES0_LS = 1 shl 8 ; Last descriptor of current frame
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RDES0_FS = 1 shl 9 ; First descriptor of current frame
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RDES0_MF = 1 shl 10 ; Multicast frame, valid only on last desc (RDES0<8>=1)
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RDES0_RF = 1 shl 11 ; Runt frame, valid only on last desc (RDES0<8>=1) and id overflow
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RDES0_DT_SERIAL = 00b shl 12 ; Data type-Serial recv frame, valid only on last desc (RDES0<8>=1)
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RDES0_DT_INTERNAL = 01b shl 12 ; Data type-Internal loopback recv frame, valid only on last desc (RDES0<8>=1)
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RDES0_DT_EXTERNAL = 11b shl 12 ; Data type-External loopback recv frame, valid only on last desc (RDES0<8>=1)
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RDES0_DE = 1 shl 14 ; Descriptor error - cant own a new desc and frame doesnt fit, valid only on last desc (RDES0<8>=1)
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RDES0_ES = 1 shl 15 ; Error Summmary - bits 1+6+11+14, valid only on last desc (RDES0<8>=1)
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RDES0_FL_SH = 16 ; Field length shift, valid only on last desc (RDES0<8>=1)
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RDES0_FL_MASK = 11111111111111b ; Field length mask (+CRC), valid only on last desc (RDES0<8>=1)
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RDES0_FF = 1 shl 30 ; Filtering fail-frame failed address recognition test(must CSR6<30>=1), valid only on last desc (RDES0<8>=1)
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RDES1_RBS1_MASK = 11111111111b ; first buffer size MASK
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RDES1_RBS2_SH = 11 ; second buffer size SHIFT
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RDES1_RBS2_MASK = 11111111111b ; second buffer size MASK
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RDES1_RCH = 1 shl 24 ; Second address chained - second address (buffer) is next desc address
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RDES1_RER = 1 shl 25 ; Receive End of Ring - final descriptor, NIC must return to first desc
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;transmition
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TDES0_DE = 1 shl 0 ; Deffered
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TDES0_UF = 1 shl 1 ; Underflow error
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TDES0_LF = 1 shl 2 ; Link fail report (only if CSR6<23>=1)
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TDES0_CC_SH = 3 ; Collision Count shift - no of collision before transmition
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TDES0_CC_MASK = 1111b ; Collision Count mask
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TDES0_HF = 1 shl 7 ; Heartbeat fail
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TDES0_EC = 1 shl 8 ; Excessive Collisions - >16 collisions
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TDES0_LC = 1 shl 9 ; Late collision
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TDES0_NC = 1 shl 10 ; No carrier
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TDES0_LO = 1 shl 11 ; Loss of carrier
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TDES0_TO = 1 shl 14 ; Transmit Jabber Timeout
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TDES0_ES = 1 shl 15 ; Error summary TDES0<1+8+9+10+11+14>=1
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TDES1_TBS1_MASK = 11111111111b ; Buffer 1 size mask
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TDES1_TBS2_SH = 11 ; Buffer 2 size shift
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TDES1_TBS2_MASK = 11111111111b ; Buffer 2 size mask
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TDES1_FT0 = 1 shl 22 ; Filtering type 0
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TDES1_DPD = 1 shl 23 ; Disabled padding for packets <64bytes, no padding
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TDES1_TCH = 1 shl 24 ; Second address chained - second buffer pointer is to next desc
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TDES1_TER = 1 shl 25 ; Transmit end of ring - final descriptor
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TDES1_AC = 1 shl 26 ; Add CRC disable -pretty obvious
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TDES1_SET = 1 shl 27 ; Setup packet
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TDES1_FT1 = 1 shl 28 ; Filtering type 1
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TDES1_FS = 1 shl 29 ; First segment - buffer is first segment of frame
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TDES1_LS = 1 shl 30 ; Last segment
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TDES1_IC = 1 shl 31 ; Interupt on completion (CSR5<0>=1) valid when TDES1<30>=1
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MAX_ETH_FRAME_SIZE = 1514
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RX_MEM_TOTAL_SIZE = RX_DES_COUNT*(DES.size+RX_BUFF_SIZE)
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TX_MEM_TOTAL_SIZE = TX_DES_COUNT*(DES.size+TX_BUFF_SIZE)
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;=============================================================================
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; serial ROM operations
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;=============================================================================
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CSR9_SR = 1 shl 11 ; SROM Select
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CSR9_RD = 1 shl 14 ; ROM Read Operation
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CSR9_SROM_DO = 1 shl 3 ; Data Out for SROM
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CSR9_SROM_DI = 1 shl 2 ; Data In to SROM
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CSR9_SROM_CK = 1 shl 1 ; clock for SROM
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CSR9_SROM_CS = 1 shl 0 ; chip select.. always needed
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; assume dx is CSR9
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macro SROM_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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; assume dx is CSR9
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macro MDIO_Delay {
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push eax
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in eax, dx
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pop eax
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}
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macro Bit_Set a_bit {
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in eax, dx
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or eax, a_bit
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out dx , eax
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}
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macro Bit_Clear a_bit {
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in eax, dx
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and eax, not (a_bit)
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out dx, eax
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}
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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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align 4
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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 2,"Loading %s driver\n", my_service
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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, [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 [IOCTL.out_size], 4
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jb .fail
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mov eax, [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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cmp [IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
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jb .fail
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mov eax, [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, 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 al, byte[device.pci_bus]
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jne @f
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cmp ah, byte[device.pci_dev]
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je .find_devicenum ; Device is already loaded, let's find it's device number
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@@:
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add esi, 4
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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 [devices], MAX_DEVICES ; First check if the driver can handle one more card
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jae .fail
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push edx
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stdcall KernelAlloc, dword 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 [device.reset], reset
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mov [device.transmit], transmit
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mov [device.unload], unload
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mov [device.name], my_service
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; save the pci bus and device numbers
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mov eax, [IOCTL.input]
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movzx ecx, byte[eax+1]
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mov [device.pci_bus], ecx
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movzx ecx, byte[eax+2]
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mov [device.pci_dev], ecx
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; Now, it's time to find the base io addres of the PCI device
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PCI_find_io
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; We've found the io address, find IRQ now
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PCI_find_irq
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DEBUGF 2,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
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[device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:8
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allocate_and_clear [device.rx_p_des], RX_DES_COUNT*(DES.size+RX_BUFF_SIZE), .err
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allocate_and_clear [device.tx_p_des], TX_DES_COUNT*(DES.size+TX_BUFF_SIZE), .err
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|
|
|
; Ok, the eth_device structure is ready, let's probe the device
|
|
; Because initialization fires IRQ, IRQ handler must be aware of this device
|
|
mov eax, [devices] ; Add the device structure to our device list
|
|
mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device)
|
|
inc [devices] ;
|
|
|
|
call probe ; this function will output in eax
|
|
test eax, eax
|
|
jnz .err2 ; If an error occured, exit
|
|
|
|
|
|
mov [device.type], NET_TYPE_ETH
|
|
call NetRegDev
|
|
|
|
cmp eax, -1
|
|
je .destroy
|
|
|
|
ret
|
|
|
|
; If the device was already loaded, find the device number and return it in eax
|
|
|
|
.find_devicenum:
|
|
DEBUGF 2,"Trying to find device number of already registered device\n"
|
|
call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx
|
|
; into a device number in edi
|
|
mov eax, edi ; Application wants it in eax instead
|
|
DEBUGF 2,"Kernel says: %u\n", eax
|
|
ret
|
|
|
|
; If an error occured, remove all allocated data and exit (returning -1 in eax)
|
|
|
|
.destroy:
|
|
; todo: reset device into virgin state
|
|
|
|
.err2:
|
|
dec [devices]
|
|
.err:
|
|
DEBUGF 2,"removing device structure\n"
|
|
stdcall KernelFree, [device.rx_p_des]
|
|
stdcall KernelFree, [device.tx_p_des]
|
|
stdcall KernelFree, ebx
|
|
|
|
|
|
.fail:
|
|
or eax, -1
|
|
ret
|
|
|
|
;------------------------------------------------------
|
|
endp
|
|
|
|
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
|
|
;; ;;
|
|
;; Actual Hardware dependent code starts here ;;
|
|
;; ;;
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
|
|
|
|
|
|
|
|
align 4
|
|
unload:
|
|
; TODO: (in this particular order)
|
|
;
|
|
; - Stop the device
|
|
; - Detach int handler
|
|
; - Remove device from local list (RTL8139_LIST)
|
|
; - call unregister function in kernel
|
|
; - Remove all allocated structures and buffers the card used
|
|
|
|
or eax,-1
|
|
|
|
ret
|
|
|
|
|
|
macro status {
|
|
set_io CSR5
|
|
in eax, dx
|
|
DEBUGF 1,"CSR5: %x\n", eax
|
|
}
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Probe ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
probe:
|
|
|
|
DEBUGF 2,"Probing dec21x4x device: "
|
|
|
|
PCI_make_bus_master
|
|
|
|
stdcall PciRead32, [device.pci_bus], [device.pci_dev], 0 ; get device/vendor id
|
|
DEBUGF 1,"Vendor id: 0x%x\n", ax
|
|
|
|
cmp ax, 0x1011
|
|
je .dec
|
|
cmp ax, 0x1317
|
|
je .admtek
|
|
jmp .notfound
|
|
|
|
.dec:
|
|
shr eax, 16
|
|
DEBUGF 1,"Vendor ok!, device id: 0x%x\n", ax ; TODO: use another method to detect chip!
|
|
|
|
cmp ax, 0x0009
|
|
je .supported_device
|
|
|
|
cmp ax, 0x0019
|
|
je .supported_device2
|
|
|
|
.admtek:
|
|
shr eax, 16
|
|
DEBUGF 1,"Vendor ok!, device id: 0x%x\n", ax
|
|
|
|
cmp ax, 0x0985
|
|
je .supported_device
|
|
|
|
.notfound:
|
|
DEBUGF 1,"Device not supported!\n"
|
|
or eax, -1
|
|
ret
|
|
|
|
.supported_device2:
|
|
|
|
; wake up the 21143
|
|
|
|
xor eax, eax
|
|
stdcall PciWrite32, [device.pci_bus], [device.pci_dev], 0x40, eax
|
|
|
|
|
|
.supported_device:
|
|
call SROM_GetWidth ; TODO: use this value returned in ecx
|
|
; in the read_word routine!
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Reset ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
reset:
|
|
|
|
DEBUGF 2,"Resetting dec21x4x\n"
|
|
|
|
;-----------------------------------------------------------
|
|
; board software reset - if fails, dont do nothing else
|
|
|
|
set_io 0
|
|
status
|
|
set_io CSR0
|
|
mov eax, CSR0_RESET
|
|
out dx, eax
|
|
|
|
; wait at least 50 PCI cycles
|
|
mov esi, 1000
|
|
call Sleep
|
|
|
|
;-----------
|
|
; setup CSR0
|
|
|
|
set_io 0
|
|
status
|
|
set_io CSR0
|
|
mov eax, CSR0_DEFAULT
|
|
out dx, eax
|
|
|
|
|
|
; wait at least 50 PCI cycles
|
|
mov esi, 1000
|
|
call Sleep
|
|
|
|
;-----------------------------------
|
|
; Read mac from eeprom to driver ram
|
|
|
|
call read_mac_eeprom
|
|
|
|
;--------------------------------
|
|
; insert irq handler on given irq
|
|
|
|
movzx eax, [device.irq_line]
|
|
DEBUGF 1,"Attaching int handler to irq %x\n", eax:1
|
|
stdcall AttachIntHandler, eax, int_handler, dword 0
|
|
test eax, eax
|
|
jnz @f
|
|
DEBUGF 1,"\nCould not attach int handler!\n"
|
|
; or eax, -1
|
|
; ret
|
|
@@:
|
|
|
|
set_io 0
|
|
status
|
|
|
|
call init_ring
|
|
|
|
;--------------------------------------------
|
|
; setup CSR3 & CSR4 (pointers to descriptors)
|
|
|
|
set_io 0
|
|
status
|
|
set_io CSR3
|
|
mov eax, [device.rx_p_des]
|
|
GetRealAddr
|
|
DEBUGF 1,"RX descriptor base address: %x\n", eax
|
|
out dx, eax
|
|
|
|
set_io CSR4
|
|
mov eax, [device.tx_p_des]
|
|
GetRealAddr
|
|
DEBUGF 1,"TX descriptor base address: %x\n", eax
|
|
out dx, eax
|
|
|
|
;-------------------------------------------------------
|
|
; setup interrupt mask register -expect IRQs from now on
|
|
|
|
status
|
|
DEBUGF 1,"Enabling interrupts\n"
|
|
set_io CSR7
|
|
mov eax, CSR7_DEFAULT
|
|
out dx, eax
|
|
status
|
|
|
|
;----------
|
|
; enable RX
|
|
|
|
set_io 0
|
|
status
|
|
DEBUGF 1,"Enable RX\n"
|
|
|
|
set_io CSR6
|
|
Bit_Set CSR6_SR; or CSR6_PR or CSR6_ST
|
|
DEBUGF 1,"CSR6: %x\n", eax
|
|
|
|
status
|
|
|
|
call start_link
|
|
|
|
; wait a bit
|
|
mov esi, 500
|
|
call Sleep
|
|
|
|
;----------------------------------------------------
|
|
; send setup packet to notify the board about the MAC
|
|
|
|
call Send_Setup_Packet
|
|
|
|
xor eax, eax
|
|
; clear packet/byte counters
|
|
|
|
lea edi, [device.bytes_tx]
|
|
mov ecx, 6
|
|
rep stosd
|
|
|
|
; Set the mtu, kernel will be able to send now
|
|
mov [device.mtu], 1514
|
|
|
|
; Set link state to unknown
|
|
mov [device.state], ETH_LINK_UNKOWN
|
|
|
|
DEBUGF 1,"Reset done\n"
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
init_ring:
|
|
|
|
;------------------------------------------
|
|
; Setup RX descriptors (use chained method)
|
|
|
|
mov eax, [device.rx_p_des]
|
|
GetRealAddr
|
|
mov edx, eax
|
|
push eax
|
|
lea esi, [eax + RX_DES_COUNT*(DES.size)] ; jump over RX descriptors
|
|
mov eax, [device.rx_p_des]
|
|
add eax, RX_DES_COUNT*(DES.size) ; jump over RX descriptors
|
|
mov edi, [device.rx_p_des]
|
|
mov ecx, RX_DES_COUNT
|
|
.loop_rx_des:
|
|
add edx, DES.size
|
|
mov [edi + DES.status], DES0_OWN ; hardware owns buffer
|
|
mov [edi + DES.length], 1984 + RDES1_RCH ; only size of first buffer, chained buffers
|
|
mov [edi + DES.buffer1], esi ; hw buffer address
|
|
mov [edi + DES.buffer2], edx ; pointer to next descriptor
|
|
mov [edi + DES.virtaddr], eax ; virtual buffer address
|
|
DEBUGF 1,"RX desc: buff addr: %x, next desc: %x, real buff addr: %x, real descr addr: %x \n", esi, edx, eax, edi
|
|
|
|
add esi, RX_BUFF_SIZE
|
|
add eax, RX_BUFF_SIZE
|
|
add edi, DES.size
|
|
dec ecx
|
|
jnz .loop_rx_des
|
|
|
|
; set last descriptor as LAST
|
|
sub edi, DES.size
|
|
or [edi + DES.length], RDES1_RER ; EndOfRing
|
|
pop [edi + DES.buffer2] ; point it to the first descriptor
|
|
|
|
;---------------------
|
|
; Setup TX descriptors
|
|
|
|
mov eax, [device.tx_p_des]
|
|
GetRealAddr
|
|
mov edx, eax
|
|
push eax
|
|
lea esi, [eax + TX_DES_COUNT*(DES.size)] ; jump over TX descriptors
|
|
mov eax, [device.tx_p_des]
|
|
add eax, TX_DES_COUNT*(DES.size) ; jump over TX descriptors
|
|
mov edi, [device.tx_p_des]
|
|
mov ecx, TX_DES_COUNT
|
|
.loop_tx_des:
|
|
add edx, DES.size
|
|
mov [edi + DES.status], 0 ; owned by driver
|
|
mov [edi + DES.length], TDES1_TCH ; chained method
|
|
mov [edi + DES.buffer1], esi ; pointer to buffer
|
|
mov [edi + DES.buffer2], edx ; pointer to next descr
|
|
mov [edi + DES.virtaddr], eax
|
|
DEBUGF 1,"TX desc: buff addr: %x, next desc: %x, virt buff addr: %x, virt descr addr: %x \n", esi, edx, eax, edi
|
|
|
|
add esi, TX_BUFF_SIZE
|
|
add eax, TX_BUFF_SIZE
|
|
add edi, DES.size
|
|
dec ecx
|
|
jnz .loop_tx_des
|
|
|
|
; set last descriptor as LAST
|
|
sub edi, DES.size
|
|
or [edi + DES.length], TDES1_TER ; EndOfRing
|
|
pop [edi + DES.buffer2] ; point it to the first descriptor
|
|
|
|
;------------------
|
|
; Reset descriptors
|
|
|
|
mov [device.tx_wr_des], 0
|
|
mov [device.tx_rd_des], 0
|
|
mov [device.rx_crt_des], 0
|
|
mov [device.tx_free_des], TX_DES_COUNT
|
|
|
|
ret
|
|
|
|
|
|
align 4
|
|
start_link:
|
|
|
|
DEBUGF 1,"Starting link\n"
|
|
|
|
; TODO: write working code here
|
|
|
|
ret
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Send setup packet ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
Send_Setup_Packet:
|
|
|
|
DEBUGF 1,"Sending setup packet\n"
|
|
|
|
; if no descriptors available, out
|
|
mov ecx, 1000
|
|
@@loop_wait_desc:
|
|
cmp [device.tx_free_des], 0
|
|
jne @f
|
|
|
|
dec ecx
|
|
jnz @@loop_wait_desc
|
|
|
|
mov eax, -1
|
|
ret
|
|
@@:
|
|
|
|
; go to current send descriptor
|
|
mov edi, [device.tx_p_des]
|
|
mov eax, [device.tx_wr_des]
|
|
DEBUGF 1,"Got free descriptor: %u (%x)", eax, edi
|
|
mov edx, DES.size
|
|
mul edx
|
|
add edi, eax
|
|
DEBUGF 1,"=>%x\n", edi
|
|
|
|
; if NOT sending FIRST setup packet, must set current descriptor to 0 size for both buffers,
|
|
; and go to next descriptor for real setup packet... ;; TODO: check if 2 descriptors are available
|
|
|
|
; cmp [device.tx_packets], 0
|
|
; je .first
|
|
;
|
|
; and [edi+DES.des1], 0
|
|
; mov [edi+DES.des0], DES0_OWN
|
|
;
|
|
; go to next descriptor
|
|
; inc [device.tx_wr_des]
|
|
; and [device.tx_wr_des], TX_DES_COUNT-1
|
|
;
|
|
; dec free descriptors count
|
|
; cmp [device.tx_free_des], 0
|
|
; jz @f
|
|
; dec [device.tx_free_des]
|
|
; @@:
|
|
;
|
|
; ; recompute pointer to current descriptor
|
|
; mov edi, [device.tx_p_des]
|
|
; mov eax, [device.tx_wr_des]
|
|
; mov edx, DES.size
|
|
; mul edx
|
|
; add edi, eax
|
|
|
|
.first:
|
|
|
|
push edi
|
|
; copy setup packet to current descriptor
|
|
mov edi, [edi + DES.virtaddr]
|
|
; copy the address once
|
|
lea esi, [device.mac]
|
|
DEBUGF 1,"copying packet to %x from %x\n", edi, esi
|
|
mov ecx, 3 ; mac is 6 bytes thus 3 words
|
|
.loop:
|
|
DEBUGF 1,"%x ", [esi]:4
|
|
movsw
|
|
inc edi
|
|
inc edi
|
|
dec ecx
|
|
jnz .loop
|
|
|
|
DEBUGF 1,"\n"
|
|
|
|
; copy 15 times the broadcast address
|
|
mov ecx, 3*15
|
|
mov eax, 0xffffffff
|
|
rep stosd
|
|
|
|
pop edi
|
|
|
|
; setup descriptor
|
|
DEBUGF 1,"setting up descriptor\n"
|
|
mov [edi + DES.length], TDES1_IC + TDES1_SET + TDES1_TCH + 192 ; size must be EXACTLY 192 bytes
|
|
mov [edi + DES.status], DES0_OWN
|
|
|
|
DEBUGF 1,"status: %x\n", [edi + DES.status]:8
|
|
DEBUGF 1,"length: %x\n", [edi + DES.length]:8
|
|
DEBUGF 1,"buffer1: %x\n", [edi + DES.buffer1]:8
|
|
DEBUGF 1,"buffer2: %x\n", [edi + DES.buffer2]:8
|
|
|
|
; go to next descriptor
|
|
inc [device.tx_wr_des]
|
|
and [device.tx_wr_des], TX_DES_COUNT-1
|
|
|
|
; dec free descriptors count
|
|
cmp [device.tx_free_des], 0
|
|
jz @f
|
|
dec [device.tx_free_des]
|
|
@@:
|
|
|
|
; start tx
|
|
set_io 0
|
|
status
|
|
set_io CSR6
|
|
in eax, dx
|
|
test eax, CSR6_ST ; if NOT started, start now
|
|
jnz .already_started
|
|
or eax, CSR6_ST
|
|
DEBUGF 1,"Starting TX\n"
|
|
jmp .do_it
|
|
.already_started:
|
|
; if already started, issue a Transmit Poll command
|
|
set_io CSR1
|
|
xor eax, eax
|
|
DEBUGF 1,"Issuing transmit poll command\n"
|
|
.do_it:
|
|
out dx, eax
|
|
status
|
|
|
|
DEBUGF 1,"Sending setup packet, completed!\n"
|
|
|
|
ret
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Transmit ;;
|
|
;; ;;
|
|
;; In: buffer pointer in [esp+4] ;;
|
|
;; size of buffer in [esp+8] ;;
|
|
;; pointer to device structure in ebx ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
transmit:
|
|
|
|
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp+4],[esp+8]
|
|
mov eax, [esp+4]
|
|
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+8], MAX_ETH_FRAME_SIZE
|
|
ja .fail
|
|
|
|
cmp [device.tx_free_des], 0
|
|
je .fail
|
|
|
|
;--------------------------
|
|
; copy packet to crt buffer
|
|
|
|
mov eax, [device.tx_wr_des]
|
|
mov edx, DES.size
|
|
mul edx
|
|
add eax, [device.tx_p_des]
|
|
mov edi, [eax + DES.virtaddr] ; pointer to buffer
|
|
mov esi, [esp+4]
|
|
mov ecx, [esp+8]
|
|
DEBUGF 1,"copying %u bytes from %x to %x\n", ecx, esi, edi
|
|
rep movsb
|
|
|
|
; set packet size
|
|
mov ecx, [eax+DES.length]
|
|
and ecx, TDES1_TER ; preserve 'End of Ring' bit
|
|
or ecx, [esp+8] ; set size
|
|
or ecx, TDES1_FS or TDES1_LS or TDES1_IC or TDES1_TCH ; first descr, last descr, interrupt on complete, chained modus
|
|
mov [eax+DES.length], ecx
|
|
|
|
; set descriptor info
|
|
mov [eax+DES.status], DES0_OWN ; say it is now owned by the 21x4x
|
|
|
|
; start tx
|
|
set_io 0
|
|
status
|
|
set_io CSR6
|
|
in eax, dx
|
|
test eax, CSR6_ST ; if NOT started, start now
|
|
jnz .already_started
|
|
or eax, CSR6_ST
|
|
DEBUGF 1,"Starting TX\n"
|
|
jmp .do_it
|
|
.already_started:
|
|
; if already started, issues a Transmit Poll command
|
|
set_io CSR1
|
|
mov eax, -1
|
|
.do_it:
|
|
out dx , eax
|
|
|
|
; Update stats
|
|
|
|
inc [device.packets_tx]
|
|
mov eax, [esp+8]
|
|
add dword [device.bytes_tx], eax
|
|
adc dword [device.bytes_tx + 4], 0
|
|
|
|
; go to next descriptor
|
|
inc [device.tx_wr_des]
|
|
and [device.tx_wr_des], TX_DES_COUNT-1
|
|
|
|
; dec free descriptors count
|
|
test [device.tx_free_des], -1
|
|
jz .end
|
|
dec [device.tx_free_des]
|
|
.end:
|
|
status
|
|
|
|
DEBUGF 1,"transmit ok\n"
|
|
xor eax, eax
|
|
stdcall KernelFree, [esp+4]
|
|
ret 8
|
|
|
|
.fail:
|
|
DEBUGF 1,"transmit failed\n"
|
|
or eax, -1
|
|
stdcall KernelFree, [esp+4]
|
|
ret 8
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Interrupt handler ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
int_handler:
|
|
|
|
push ebx esi edi
|
|
|
|
DEBUGF 1,"\n%s int\n", my_service
|
|
|
|
; find pointer of device wich made IRQ occur
|
|
|
|
mov ecx, [devices]
|
|
test ecx, ecx
|
|
jz .nothing
|
|
mov esi, device_list
|
|
.nextdevice:
|
|
mov ebx, [esi]
|
|
|
|
set_io 0
|
|
set_io CSR5
|
|
in ax, dx
|
|
test ax, ax
|
|
out dx, ax ; send it back to ACK
|
|
jnz .got_it
|
|
.continue:
|
|
add esi, 4
|
|
dec ecx
|
|
jnz .nextdevice
|
|
.nothing:
|
|
pop edi esi ebx
|
|
xor eax, eax
|
|
|
|
ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver)
|
|
|
|
.got_it:
|
|
|
|
DEBUGF 1,"Device: %x CSR5: %x ", ebx, ax
|
|
|
|
;----------------------------------
|
|
; TX ok?
|
|
|
|
test ax, CSR5_TI
|
|
jz .not_tx
|
|
push ax esi ecx
|
|
|
|
DEBUGF 1,"TX ok!\n"
|
|
|
|
; go to current descriptor
|
|
mov edi, [device.tx_p_des]
|
|
|
|
mov eax, [device.tx_rd_des]
|
|
mov edx, DES.size
|
|
mul edx
|
|
add edi, eax
|
|
|
|
.loop_tx:
|
|
|
|
; done if all desc are free
|
|
cmp [device.tx_free_des], TX_DES_COUNT
|
|
jz .end_tx
|
|
|
|
mov eax, [edi+DES.status]
|
|
|
|
; we stop at first desc that is owned be NIC
|
|
test eax, DES0_OWN
|
|
jnz .end_tx
|
|
|
|
; detect is setup packet
|
|
cmp eax, (0ffffffffh - DES0_OWN) ; all other bits are 1
|
|
jne .not_setup_packet
|
|
DEBUGF 1,"Setup Packet detected\n"
|
|
.not_setup_packet:
|
|
|
|
DEBUGF 1,"packet status: %x\n", eax
|
|
|
|
; next descriptor
|
|
add edi, DES.size
|
|
inc [device.tx_rd_des]
|
|
and [device.tx_rd_des], TX_DES_COUNT-1
|
|
|
|
; inc free desc
|
|
inc [device.tx_free_des]
|
|
cmp [device.tx_free_des], TX_DES_COUNT
|
|
jbe @f
|
|
mov [device.tx_free_des], TX_DES_COUNT
|
|
@@:
|
|
|
|
jmp .loop_tx
|
|
.end_tx:
|
|
|
|
;------------------------------------------------------
|
|
; here must be called standard Ethernet Tx Irq Handler
|
|
;------------------------------------------------------
|
|
|
|
pop ecx esi ax
|
|
|
|
;----------------------------------
|
|
; RX irq
|
|
.not_tx:
|
|
test ax, CSR5_RI
|
|
jz .not_rx
|
|
push ax esi ecx
|
|
|
|
DEBUGF 1,"RX ok!\n"
|
|
|
|
push ebx
|
|
.rx_loop:
|
|
pop ebx
|
|
|
|
; get current descriptor
|
|
mov edi, [device.rx_p_des]
|
|
mov eax, [device.rx_crt_des]
|
|
mov edx, DES.size
|
|
mul edx
|
|
add edi, eax
|
|
|
|
; now check status
|
|
mov eax, [edi + DES.status]
|
|
|
|
test eax, DES0_OWN
|
|
jnz .end_rx ; current desc is busy, nothing to do
|
|
|
|
test eax, RDES0_FS
|
|
jz .end_rx ; current desc is NOT first packet, ERROR!
|
|
|
|
test eax, RDES0_LS ; if not last desc of packet, error for now
|
|
jz .end_rx
|
|
|
|
test eax, RDES0_ES
|
|
jnz .end_rx
|
|
|
|
mov esi, [edi + DES.virtaddr]
|
|
mov ecx, [edi + DES.status]
|
|
shr ecx, RDES0_FL_SH
|
|
and ecx, RDES0_FL_MASK
|
|
sub ecx, 4 ; crc, we dont need it
|
|
|
|
DEBUGF 1,"Received packet!, size=%u, addr:%x\n", ecx, esi
|
|
|
|
push esi edi ecx
|
|
stdcall KernelAlloc, ecx ; Allocate a buffer to put packet into
|
|
pop ecx edi esi
|
|
test eax, eax
|
|
jz .fail
|
|
|
|
push ebx
|
|
push dword .rx_loop
|
|
push ecx eax
|
|
mov edi, eax
|
|
|
|
; update statistics
|
|
inc [device.packets_rx]
|
|
add dword [device.bytes_rx], ecx
|
|
adc dword [device.bytes_rx + 4], 0
|
|
|
|
; copy packet data
|
|
shr cx , 1
|
|
jnc .nb
|
|
movsb
|
|
.nb:
|
|
shr cx , 1
|
|
jnc .nw
|
|
movsw
|
|
.nw:
|
|
rep movsd
|
|
|
|
mov [edi + DES.status], DES0_OWN ; free descriptor
|
|
|
|
inc [device.rx_crt_des] ; next descriptor
|
|
and [device.rx_crt_des], RX_DES_COUNT-1
|
|
|
|
jmp Eth_input
|
|
|
|
.end_rx:
|
|
.fail:
|
|
pop ecx esi ax
|
|
.not_rx:
|
|
|
|
pop edi esi ebx
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
write_mac: ; in: mac pushed onto stack (as 3 words)
|
|
|
|
DEBUGF 2,"Writing MAC: "
|
|
|
|
; write data into driver cache
|
|
mov esi, esp
|
|
lea edi, [device.mac]
|
|
movsd
|
|
movsw
|
|
add esp, 6
|
|
|
|
; send setup packet (only if driver is started)
|
|
call Send_Setup_Packet
|
|
|
|
align 4
|
|
read_mac:
|
|
|
|
DEBUGF 1,"Read_mac\n"
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
read_mac_eeprom:
|
|
|
|
DEBUGF 1,"Read_mac_eeprom\n"
|
|
|
|
lea edi, [device.mac]
|
|
mov esi, 20/2 ; read words, start address is 20
|
|
.loop:
|
|
push esi edi
|
|
call SROM_Read_Word
|
|
pop edi esi
|
|
stosw
|
|
inc esi
|
|
cmp esi, 26/2
|
|
jb .loop
|
|
|
|
DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[edi-6]:2,[edi-5]:2,[edi-4]:2,[edi-3]:2,[edi-2]:2,[edi-1]:2
|
|
|
|
ret
|
|
|
|
align 4
|
|
write_mac_eeprom:
|
|
|
|
DEBUGF 1,"Write_mac_eeprom\n"
|
|
|
|
ret
|
|
|
|
|
|
align 4
|
|
SROM_GetWidth: ; should be 6 or 8 according to some manuals (returns in ecx)
|
|
|
|
DEBUGF 1,"SROM_GetWidth\n"
|
|
|
|
call SROM_Idle
|
|
call SROM_EnterAccessMode
|
|
|
|
; set_io 0
|
|
; set_io CSR9
|
|
|
|
; send 110b
|
|
|
|
in eax, dx
|
|
or eax, CSR9_SROM_DI
|
|
call SROM_out
|
|
|
|
in eax, dx
|
|
or eax, CSR9_SROM_DI
|
|
call SROM_out
|
|
|
|
in eax, dx
|
|
and eax, not (CSR9_SROM_DI)
|
|
call SROM_out
|
|
|
|
mov ecx,1
|
|
.loop2:
|
|
Bit_Set CSR9_SROM_CK
|
|
SROM_Delay
|
|
|
|
in eax, dx
|
|
and eax, CSR9_SROM_DO
|
|
jnz .not_zero
|
|
|
|
Bit_Clear CSR9_SROM_CK
|
|
SROM_Delay
|
|
jmp .end_loop2
|
|
.not_zero:
|
|
|
|
Bit_Clear CSR9_SROM_CK
|
|
SROM_Delay
|
|
|
|
inc ecx
|
|
cmp ecx, 12
|
|
jbe .loop2
|
|
.end_loop2:
|
|
|
|
DEBUGF 1,"Srom width=%u\n", ecx
|
|
|
|
call SROM_Idle
|
|
call SROM_EnterAccessMode
|
|
call SROM_Idle
|
|
|
|
ret
|
|
|
|
|
|
align 4
|
|
SROM_out:
|
|
|
|
out dx, eax
|
|
SROM_Delay
|
|
Bit_Set CSR9_SROM_CK
|
|
SROM_Delay
|
|
Bit_Clear CSR9_SROM_CK
|
|
SROM_Delay
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
SROM_EnterAccessMode:
|
|
|
|
DEBUGF 1,"SROM_EnterAccessMode\n"
|
|
|
|
set_io 0
|
|
set_io CSR9
|
|
mov eax, CSR9_SR
|
|
out dx, eax
|
|
SROM_Delay
|
|
|
|
Bit_Set CSR9_RD
|
|
SROM_Delay
|
|
|
|
Bit_Clear CSR9_SROM_CK
|
|
SROM_Delay
|
|
|
|
Bit_Set CSR9_SROM_CS
|
|
SROM_Delay
|
|
|
|
ret
|
|
|
|
|
|
|
|
align 4
|
|
SROM_Idle:
|
|
|
|
DEBUGF 1,"SROM_Idle\n"
|
|
|
|
call SROM_EnterAccessMode
|
|
|
|
; set_io 0
|
|
; set_io CSR9
|
|
|
|
mov ecx, 25
|
|
.loop_clk:
|
|
|
|
Bit_Clear CSR9_SROM_CK
|
|
SROM_Delay
|
|
Bit_Set CSR9_SROM_CK
|
|
SROM_Delay
|
|
|
|
dec ecx
|
|
jnz .loop_clk
|
|
|
|
|
|
Bit_Clear CSR9_SROM_CK
|
|
SROM_Delay
|
|
Bit_Clear CSR9_SROM_CS
|
|
SROM_Delay
|
|
|
|
xor eax, eax
|
|
out dx, eax
|
|
|
|
ret
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Read serial EEprom word ;;
|
|
;; ;;
|
|
;; In: esi = read address ;;
|
|
;; OUT: ax = data word ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
align 4
|
|
SROM_Read_Word:
|
|
|
|
DEBUGF 1,"SROM_Read_word at: %x result: ", esi
|
|
|
|
set_io 0
|
|
set_io CSR9
|
|
|
|
; enter access mode
|
|
mov eax, CSR9_SR + CSR9_RD
|
|
out dx , eax
|
|
or eax, CSR9_SROM_CS
|
|
out dx , eax
|
|
|
|
; TODO: change this hard-coded 6-bit stuff to use value from srom_getwidth
|
|
|
|
; send read command "110b" + address to read from
|
|
and esi, 111111b
|
|
or esi, 110b shl 6
|
|
|
|
mov ecx, 1 shl 9
|
|
.loop_cmd:
|
|
mov eax, CSR9_SR + CSR9_RD + CSR9_SROM_CS
|
|
test esi, ecx
|
|
jz @f
|
|
or eax, CSR9_SROM_DI
|
|
@@:
|
|
out dx , eax
|
|
SROM_Delay
|
|
or eax, CSR9_SROM_CK
|
|
out dx , eax
|
|
SROM_Delay
|
|
|
|
shr ecx, 1
|
|
jnz .loop_cmd
|
|
|
|
; read data from SROM
|
|
|
|
xor esi, esi
|
|
mov ecx, 17 ;;; TODO: figure out why 17, not 16
|
|
.loop_read:
|
|
|
|
mov eax, CSR9_SR + CSR9_RD + CSR9_SROM_CS + CSR9_SROM_CK
|
|
out dx , eax
|
|
SROM_Delay
|
|
|
|
in eax, dx
|
|
and eax, CSR9_SROM_DO
|
|
shr eax, 3
|
|
shl esi, 1
|
|
or esi, eax
|
|
|
|
mov eax, CSR9_SR + CSR9_RD + CSR9_SROM_CS
|
|
out dx , eax
|
|
SROM_Delay
|
|
|
|
dec ecx
|
|
jnz .loop_read
|
|
|
|
mov eax, esi
|
|
|
|
DEBUGF 1,"%x\n", ax
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;<<<<<<<<<<<<<<<<<<<<<<<<<<<<
|
|
|
|
|
|
|
|
;*********************************************************************
|
|
;* Media Descriptor Code *
|
|
;*********************************************************************
|
|
|
|
; MII transceiver control section.
|
|
; Read and write the MII registers using software-generated serial
|
|
; MDIO protocol. See the MII specifications or DP83840A data sheet
|
|
; for details.
|
|
|
|
; The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
|
|
; met by back-to-back PCI I/O cycles, but we insert a delay to avoid
|
|
; "overclocking" issues or future 66Mhz PCI.
|
|
|
|
; Read and write the MII registers using software-generated serial
|
|
; MDIO protocol. It is just different enough from the EEPROM protocol
|
|
; to not share code. The maxium data clock rate is 2.5 Mhz.
|
|
|
|
MDIO_SHIFT_CLK = 0x10000
|
|
MDIO_DATA_WRITE0 = 0x00000
|
|
MDIO_DATA_WRITE1 = 0x20000
|
|
MDIO_ENB = 0x00000 ; Ignore the 0x02000 databook setting.
|
|
MDIO_ENB_IN = 0x40000
|
|
MDIO_DATA_READ = 0x80000
|
|
|
|
; MII transceiver control section.
|
|
; Read and write the MII registers using software-generated serial
|
|
; MDIO protocol. See the MII specifications or DP83840A data sheet
|
|
; for details.
|
|
|
|
align 4
|
|
mdio_read: ; phy_id:edx, location:esi
|
|
|
|
DEBUGF 1,"mdio read, phy=%x, location=%x", edx, esi
|
|
|
|
shl edx, 5
|
|
or esi, edx
|
|
or esi, 0xf6 shl 10
|
|
|
|
set_io 0
|
|
set_io CSR9
|
|
|
|
; if (tp->chip_id == LC82C168) {
|
|
; int i = 1000;
|
|
; outl(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
|
|
; inl(ioaddr + 0xA0);
|
|
; inl(ioaddr + 0xA0);
|
|
; while (--i > 0)
|
|
; if ( ! ((retval = inl(ioaddr + 0xA0)) & 0x80000000))
|
|
; return retval & 0xffff;
|
|
; return 0xffff;
|
|
; }
|
|
;
|
|
; if (tp->chip_id == COMET) {
|
|
; if (phy_id == 1) {
|
|
; if (location < 7)
|
|
; return inl(ioaddr + 0xB4 + (location<<2));
|
|
; else if (location == 17)
|
|
; return inl(ioaddr + 0xD0);
|
|
; else if (location >= 29 && location <= 31)
|
|
; return inl(ioaddr + 0xD4 + ((location-29)<<2));
|
|
; }
|
|
; return 0xffff;
|
|
; }
|
|
|
|
; Establish sync by sending at least 32 logic ones.
|
|
|
|
mov ecx, 32
|
|
.loop:
|
|
mov eax, MDIO_ENB or MDIO_DATA_WRITE1
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
or eax, MDIO_SHIFT_CLK
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
dec ecx
|
|
jnz .loop
|
|
|
|
|
|
; Shift the read command bits out.
|
|
|
|
mov ecx, 1 shl 15
|
|
.loop2:
|
|
mov eax, MDIO_ENB
|
|
test esi, ecx
|
|
jz @f
|
|
or eax, MDIO_DATA_WRITE1
|
|
@@:
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
or eax, MDIO_SHIFT_CLK
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
shr ecx, 1
|
|
jnz .loop2
|
|
|
|
|
|
; Read the two transition, 16 data, and wire-idle bits.
|
|
|
|
xor esi, esi
|
|
mov ecx, 19
|
|
.loop3:
|
|
mov eax, MDIO_ENB_IN
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
shl esi, 1
|
|
in eax, dx
|
|
test eax, MDIO_DATA_READ
|
|
jz @f
|
|
inc esi
|
|
@@:
|
|
|
|
mov eax, MDIO_ENB_IN or MDIO_SHIFT_CLK
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
dec ecx
|
|
jnz .loop3
|
|
|
|
shr esi, 1
|
|
movzx eax, si
|
|
|
|
DEBUGF 1,", data=%x\n", ax
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
align 4
|
|
mdio_write: ;int phy_id: edx, int location: edi, int value: ax)
|
|
|
|
DEBUGF 1,"mdio write, phy=%x, location=%x, data=%x\n", edx, edi, ax
|
|
|
|
shl edi, 18
|
|
or edi, 0x5002 shl 16
|
|
shl edx, 23
|
|
or edi, edx
|
|
mov di, ax
|
|
|
|
set_io 0
|
|
set_io CSR9
|
|
|
|
; if (tp->chip_id == LC82C168) {
|
|
; int i = 1000;
|
|
; outl(cmd, ioaddr + 0xA0);
|
|
; do
|
|
; if ( ! (inl(ioaddr + 0xA0) & 0x80000000))
|
|
; break;
|
|
; while (--i > 0);
|
|
; return;
|
|
; }
|
|
|
|
; if (tp->chip_id == COMET) {
|
|
; if (phy_id != 1)
|
|
; return;
|
|
; if (location < 7)
|
|
; outl(value, ioaddr + 0xB4 + (location<<2));
|
|
; else if (location == 17)
|
|
; outl(value, ioaddr + 0xD0);
|
|
; else if (location >= 29 && location <= 31)
|
|
; outl(value, ioaddr + 0xD4 + ((location-29)<<2));
|
|
; return;
|
|
; }
|
|
|
|
|
|
; Establish sync by sending at least 32 logic ones.
|
|
|
|
mov ecx, 32
|
|
.loop:
|
|
mov eax, MDIO_ENB or MDIO_DATA_WRITE1
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
or eax, MDIO_SHIFT_CLK
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
dec ecx
|
|
jnz .loop
|
|
|
|
|
|
; Shift the command bits out.
|
|
|
|
mov ecx, 1 shl 31
|
|
.loop2:
|
|
mov eax, MDIO_ENB
|
|
test edi, ecx
|
|
jz @f
|
|
or eax, MDIO_DATA_WRITE1
|
|
@@:
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
or eax, MDIO_SHIFT_CLK
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
shr ecx, 1
|
|
jnz .loop2
|
|
|
|
|
|
; Clear out extra bits.
|
|
|
|
mov ecx, 2
|
|
.loop3:
|
|
mov eax, MDIO_ENB
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
or eax, MDIO_SHIFT_CLK
|
|
out dx, eax
|
|
MDIO_Delay
|
|
|
|
dec ecx
|
|
jnz .loop3
|
|
|
|
ret
|
|
|
|
|
|
; End of code
|
|
align 4 ; Place all initialised data here
|
|
|
|
devices dd 0
|
|
version dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF)
|
|
my_service db 'DEC21X4X',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
|
|
|
|
|