forked from KolibriOS/kolibrios
1453 lines
41 KiB
NASM
1453 lines
41 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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;; AMD PCnet driver for KolibriOS ;;
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;; ;;
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;; By hidnplayr & clevermouse ;;
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;; ;;
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;; Based on the PCnet32 driver for MenuetOS, by Jarek Pelczar ;;
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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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DEBUG = 1
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__DEBUG__ = 1
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__DEBUG_LEVEL__ = 1
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MAX_DEVICES = 4
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MAX_ETH_FRAME_SIZE = 1514
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TX_RING_SIZE = 4
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RX_RING_SIZE = 4
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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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PORT_AUI = 0x00
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PORT_10BT = 0x01
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PORT_GPSI = 0x02
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PORT_MII = 0x03
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PORT_PORTSEL = 0x03
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PORT_ASEL = 0x04
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PORT_100 = 0x40
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PORT_FD = 0x80
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DMA_MASK = 0xffffffff
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LOG_TX_BUFFERS = 2 ; FIXME
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LOG_RX_BUFFERS = 2
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TX_RING_MOD_MASK = (TX_RING_SIZE-1)
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TX_RING_LEN_BITS = (LOG_TX_BUFFERS shl 12)
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RX_RING_MOD_MASK = (RX_RING_SIZE-1)
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RX_RING_LEN_BITS = (LOG_RX_BUFFERS shl 4)
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PKT_BUF_SZ = 1544
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WIO_RDP = 0x10
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WIO_RAP = 0x12
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WIO_RESET = 0x14
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WIO_BDP = 0x16
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DWIO_RDP = 0x10
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DWIO_RAP = 0x14
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DWIO_RESET = 0x18
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DWIO_BDP = 0x1C
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; CSR registers
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CSR_CSR = 0x00
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CSR_IAB0 = 0x01
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CSR_IAB1 = 0x02
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CSR_IMR = 0x03
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CSR_TFEAT = 0x04
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CSR_EXTCTL1 = 0x05
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CSR_DTBLLEN = 0x06
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CSR_EXTCTL2 = 0x07
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CSR_MAR0 = 0x08
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CSR_MAR1 = 0x09
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CSR_MAR2 = 0x0A
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CSR_MAR3 = 0x0B
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CSR_PAR0 = 0x0C
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CSR_PAR1 = 0x0D
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CSR_PAR2 = 0x0E
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CSR_MODE = 0x0F
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CSR_RXADDR0 = 0x18
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CSR_RXADDR1 = 0x19
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CSR_TXADDR0 = 0x1E
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CSR_TXADDR1 = 0x1F
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CSR_TXPOLL = 0x2F
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CSR_RXPOLL = 0x31
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CSR_RXRINGLEN = 0x4C
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CSR_TXRINGLEN = 0x4E
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CSR_DMACTL = 0x50
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CSR_BUSTIMER = 0x52
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CSR_MEMERRTIMEO = 0x64
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CSR_ONNOWMISC = 0x74
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CSR_ADVFEAT = 0x7A
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CSR_MACCFG = 0x7D
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CSR_CHIPID0 = 0x58
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CSR_CHIPID1 = 0x59
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; Control and Status Register (CSR0)
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CSR_INIT = 1 shl 0
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CSR_START = 1 shl 1
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CSR_STOP = 1 shl 2
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CSR_TX = 1 shl 3
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CSR_TXON = 1 shl 4
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CSR_RXON = 1 shl 5
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CSR_INTEN = 1 shl 6
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CSR_INTR = 1 shl 7
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CSR_IDONE = 1 shl 8
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CSR_TINT = 1 shl 9
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CSR_RINT = 1 shl 10
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CSR_MERR = 1 shl 11
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CSR_MISS = 1 shl 12
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CSR_CERR = 1 shl 13
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; Interrupt masks and deferral control (CSR3)
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IMR_BSWAP = 0x0004
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IMR_ENMBA = 0x0008 ; enable modified backoff alg
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IMR_DXMT2PD = 0x0010
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IMR_LAPPEN = 0x0020 ; lookahead packet processing enb
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IMR_DXSUFLO = 0x0040 ; disable TX stop on underflow
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IMR_IDONE = 0x0100
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IMR_TINT = 0x0200
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IMR_RINT = 0x0400
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IMR_MERR = 0x0800
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IMR_MISS = 0x1000
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IMR = IMR_IDONE ; IMR_TINT + IMR_RINT + IMR_MERR + IMR_MISS ;+ IMR_IDONE
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; Test and features control (CSR4)
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TFEAT_TXSTRTMASK = 0x0004
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TFEAT_TXSTRT = 0x0008
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TFEAT_RXCCOFLOWM = 0x0010 ; Rx collision counter oflow
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TFEAT_RXCCOFLOW = 0x0020
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TFEAT_UINT = 0x0040
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TFEAT_UINTREQ = 0x0080
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TFEAT_MISSOFLOWM = 0x0100
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TFEAT_MISSOFLOW = 0x0200
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TFEAT_STRIP_FCS = 0x0400
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TFEAT_PAD_TX = 0x0800
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TFEAT_TXDPOLL = 0x1000
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TFEAT_DMAPLUS = 0x4000
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; Extended control and interrupt 1 (CSR5)
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EXTCTL1_SPND = 0x0001 ; suspend
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EXTCTL1_MPMODE = 0x0002 ; magic packet mode
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EXTCTL1_MPENB = 0x0004 ; magic packet enable
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EXTCTL1_MPINTEN = 0x0008 ; magic packet interrupt enable
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EXTCTL1_MPINT = 0x0010 ; magic packet interrupt
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EXTCTL1_MPPLBA = 0x0020 ; magic packet phys. logical bcast
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EXTCTL1_EXDEFEN = 0x0040 ; excessive deferral interrupt enb.
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EXTCTL1_EXDEF = 0x0080 ; excessive deferral interrupt
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EXTCTL1_SINTEN = 0x0400 ; system interrupt enable
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EXTCTL1_SINT = 0x0800 ; system interrupt
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EXTCTL1_LTINTEN = 0x4000 ; last TX interrupt enb
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EXTCTL1_TXOKINTD = 0x8000 ; TX OK interrupt disable
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; RX/TX descriptor len (CSR6)
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DTBLLEN_RLEN = 0x0F00
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DTBLLEN_TLEN = 0xF000
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; Extended control and interrupt 2 (CSR7)
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EXTCTL2_MIIPDTINTE = 0x0001
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EXTCTL2_MIIPDTINT = 0x0002
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EXTCTL2_MCCIINTE = 0x0004
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EXTCTL2_MCCIINT = 0x0008
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EXTCTL2_MCCINTE = 0x0010
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EXTCTL2_MCCINT = 0x0020
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EXTCTL2_MAPINTE = 0x0040
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EXTCTL2_MAPINT = 0x0080
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EXTCTL2_MREINTE = 0x0100
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EXTCTL2_MREINT = 0x0200
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EXTCTL2_STINTE = 0x0400
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EXTCTL2_STINT = 0x0800
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EXTCTL2_RXDPOLL = 0x1000
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EXTCTL2_RDMD = 0x2000
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EXTCTL2_RXFRTG = 0x4000
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EXTCTL2_FASTSPNDE = 0x8000
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; Mode (CSR15)
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MODE_RXD = 0x0001 ; RX disable
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MODE_TXD = 0x0002 ; TX disable
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MODE_LOOP = 0x0004 ; loopback enable
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MODE_TXCRCD = 0x0008
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MODE_FORCECOLL = 0x0010
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MODE_RETRYD = 0x0020
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MODE_INTLOOP = 0x0040
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MODE_PORTSEL = 0x0180
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MODE_RXVPAD = 0x2000
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MODE_RXNOBROAD = 0x4000
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MODE_PROMISC = 0x8000
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; BCR (Bus Control Registers)
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BCR_MMRA = 0x00 ; Master Mode Read Active
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BCR_MMW = 0x01 ; Master Mode Write Active
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BCR_MISCCFG = 0x02
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BCR_LED0 = 0x04
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BCR_LED1 = 0x05
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BCR_LED2 = 0x06
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BCR_LED3 = 0x07
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BCR_DUPLEX = 0x09
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BCR_BUSCTL = 0x12
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BCR_EECTL = 0x13
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BCR_SSTYLE = 0x14
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BCR_PCILAT = 0x16
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BCR_PCISUBVENID = 0x17
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BCR_PCISUBSYSID = 0x18
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BCR_SRAMSIZE = 0x19
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BCR_SRAMBOUND = 0x1A
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BCR_SRAMCTL = 0x1B
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BCR_MIICTL = 0x20
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BCR_MIIADDR = 0x21
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BCR_MIIDATA = 0x22
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BCR_PCIVENID = 0x23
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BCR_PCIPCAP = 0x24
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BCR_DATA0 = 0x25
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BCR_DATA1 = 0x26
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BCR_DATA2 = 0x27
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BCR_DATA3 = 0x28
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BCR_DATA4 = 0x29
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BCR_DATA5 = 0x2A
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BCR_DATA6 = 0x2B
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BCR_DATA7 = 0x2C
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BCR_ONNOWPAT0 = 0x2D
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BCR_ONNOWPAT1 = 0x2E
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BCR_ONNOWPAT2 = 0x2F
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BCR_PHYSEL = 0x31
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; RX status register
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RXSTAT_BPE = 0x0080 ; bus parity error
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RXSTAT_ENP = 0x0100 ; end of packet
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RXSTAT_STP = 0x0200 ; start of packet
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RXSTAT_BUFF = 0x0400 ; buffer error
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RXSTAT_CRC = 0x0800 ; CRC error
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RXSTAT_OFLOW = 0x1000 ; rx overrun
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RXSTAT_FRAM = 0x2000 ; framing error
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RXSTAT_ERR = 0x4000 ; error summary
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RXSTAT_OWN = 0x8000
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; TX status register
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TXSTAT_TRC = 0x0000000F ; transmit retries
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TXSTAT_RTRY = 0x04000000 ; retry
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TXSTAT_LCAR = 0x08000000 ; lost carrier
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TXSTAT_LCOL = 0x10000000 ; late collision
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TXSTAT_EXDEF = 0x20000000 ; excessive deferrals
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TXSTAT_UFLOW = 0x40000000 ; transmit underrun
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TXSTAT_BUFF = 0x80000000 ; buffer error
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TXCTL_OWN = 0x8000
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TXCTL_ERR = 0x4000 ; error summary
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TXCTL_ADD_FCS = 0x2000 ; add FCS to pkt
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TXCTL_MORE_LTINT = 0x1000
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TXCTL_ONE = 0x0800
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TXCTL_DEF = 0x0400
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TXCTL_STP = 0x0200
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TXCTL_ENP = 0x0100
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TXCTL_BPE = 0x0080
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TXCTL_MBO = 0x0000F000
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TXCTL_BUFSZ = 0x00000FFF
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virtual at ebx
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device:
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ETH_DEVICE
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; device specific
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rb 0x100-(($ - device) and 0xff) ; align 256
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.private:
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.mode_ dw ?
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.tlen_rlen dw ?
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.phys_addr dp ?
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.reserved dw ?
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.filter dq ?
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.rx_ring_phys dd ?
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.tx_ring_phys dd ?
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rb 0x100-(($ - device) and 0xff) ; align 256
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.rx_ring rb RX_RING_SIZE * descriptor.size
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rb 0x100-(($ - device) and 0xff) ; align 256
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.tx_ring rb TX_RING_SIZE * descriptor.size
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.cur_rx db ?
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.cur_tx db ?
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.last_tx db ?
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.options dd ?
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.full_duplex db ?
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.chip_version dw ?
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.mii db ?
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.ltint db ?
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.dxsuflo db ?
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.fset db ?
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.fdx db ?
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.io_addr dd ?
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.irq_line db ?
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.pci_bus db ?
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.pci_dev db ?
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.read_csr dd ?
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.write_csr dd ?
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.read_bcr dd ?
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.write_bcr dd ?
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.read_rap dd ?
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.write_rap dd ?
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.sw_reset dd ?
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device_size = $ - device
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end virtual
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struc descriptor {
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.base dd ?
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.length dw ?
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.status dw ?
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.msg_length dw ?
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.misc dw ?
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.virtual dd ?
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.size:
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}
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virtual at 0
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descriptor descriptor
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end virtual
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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 %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 ecx, [devices]
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test ecx, ecx
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jz .firstdevice
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mov esi, device_list
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; mov eax, [IOCTL.input] ; get the pci bus and device numbers
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mov ax , [eax+1] ;
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.nextdevice:
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mov ebx, [esi]
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cmp ax , word [device.pci_bus] ; compare with pci and device num in device list (notice the usage of word instead of byte)
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je .find_devicenum ; Device is already loaded, let's find it's device number
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add esi, 4
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loop .nextdevice
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; 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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allocate_and_clear ebx, device_size, .fail
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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.get_MAC], read_mac
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mov [device.set_MAC], write_mac
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mov [device.unload], unload
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mov [device.name], my_service
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; save the pci bus and device numbers
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mov eax, [IOCTL.input]
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mov cl, [eax+1]
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mov [device.pci_bus], cl
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mov cl, [eax+2]
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mov [device.pci_dev], cl
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; Now, it's time to find the base io addres of the PCI device
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find_io [device.pci_bus], [device.pci_dev], [device.io_addr]
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; We've found the io address, find IRQ now
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find_irq [device.pci_bus], [device.pci_dev], [device.irq_line]
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DEBUGF 1,"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]:4
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; Ok, the eth_device structure is ready, let's probe the device
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; Because initialization fires IRQ, IRQ handler must be aware of this device
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mov eax, [devices] ; Add the device structure to our device list
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mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device)
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inc [devices] ;
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call probe ; this function will output in eax
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test eax, eax
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jnz .destroy ; If an error occured, exit
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mov [device.type], NET_TYPE_ETH
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call NetRegDev
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cmp eax, -1
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je .destroy
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ret
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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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call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx
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; into a device number in edi
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mov eax, edi ; Application wants it in eax instead
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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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.destroy:
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; todo: reset device into virgin state
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dec [devices]
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.err:
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DEBUGF 1,"Error, removing all data !\n"
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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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align 4
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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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;;
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|
;; probe: enables the device (if it really is a PCnet device)
|
|
;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
probe:
|
|
|
|
mov edx, [device.io_addr]
|
|
|
|
call wio_reset
|
|
|
|
xor ecx, ecx
|
|
call wio_read_csr
|
|
cmp eax, 4
|
|
jne .try_dwio
|
|
|
|
; Try Word I/O
|
|
mov ax, 88
|
|
add edx, WIO_RAP
|
|
out dx, ax
|
|
nop
|
|
nop
|
|
in ax, dx
|
|
sub edx, WIO_RAP
|
|
cmp ax, 88
|
|
jne .try_dwio
|
|
|
|
call switch_to_wio
|
|
|
|
jmp .L1
|
|
|
|
.try_dwio:
|
|
call dwio_reset
|
|
|
|
xor ecx, ecx
|
|
call dwio_read_csr
|
|
cmp eax, 4
|
|
jne .no_dev
|
|
|
|
; Try Dword I/O
|
|
add edx, DWIO_RAP
|
|
mov eax, 88
|
|
out dx, eax
|
|
nop
|
|
nop
|
|
in eax, dx
|
|
sub edx, DWIO_RAP
|
|
and eax, 0xffff
|
|
cmp eax, 88
|
|
jne .no_dev
|
|
|
|
call switch_to_dwio
|
|
|
|
jmp .L1
|
|
|
|
.no_dev:
|
|
DEBUGF 1,"PCnet device not found!\n"
|
|
mov eax, 1
|
|
ret
|
|
|
|
.L1:
|
|
mov ecx, CSR_CHIPID0
|
|
call [device.read_csr]
|
|
|
|
mov esi, eax
|
|
shr esi, 12
|
|
|
|
and ax, 0xfff
|
|
cmp ax, 3
|
|
jne .no_dev
|
|
|
|
mov ecx, CSR_CHIPID1
|
|
call [device.read_csr]
|
|
shl eax, 4
|
|
or eax, esi
|
|
mov [device.chip_version], ax
|
|
|
|
mov [device.fdx], 0
|
|
mov [device.mii], 0
|
|
mov [device.fset], 0
|
|
mov [device.dxsuflo], 0
|
|
mov [device.ltint], 0
|
|
|
|
cmp ax, 0x2420
|
|
je .L2
|
|
cmp ax, 0x2430
|
|
je .L2
|
|
|
|
mov [device.fdx], 1
|
|
|
|
cmp ax, 0x2621
|
|
je .L4
|
|
cmp ax, 0x2623
|
|
je .L5
|
|
cmp ax, 0x2624
|
|
je .L6
|
|
cmp ax, 0x2625
|
|
je .L7
|
|
cmp ax, 0x2626
|
|
je .L8
|
|
cmp ax, 0x2627
|
|
je .L9
|
|
|
|
DEBUGF 1,"Invalid chip rev\n"
|
|
jmp .no_dev
|
|
.L2:
|
|
mov [device.name], device_l2
|
|
jmp .L10
|
|
.L4:
|
|
mov [device.name], device_l4
|
|
; mov [device.fdx], 1
|
|
jmp .L10
|
|
.L5:
|
|
mov [device.name], device_l5
|
|
; mov [device.fdx], 1
|
|
mov [device.mii], 1
|
|
mov [device.fset], 1
|
|
mov [device.ltint], 1
|
|
jmp .L10
|
|
.L6:
|
|
mov [device.name], device_l6
|
|
; mov [device.fdx], 1
|
|
mov [device.mii], 1
|
|
mov [device.fset], 1
|
|
jmp .L10
|
|
.L7:
|
|
mov [device.name], device_l7
|
|
; mov [device.fdx], 1
|
|
mov [device.mii], 1
|
|
jmp .L10
|
|
.L8:
|
|
mov [device.name], device_l8
|
|
; mov [device.fdx], 1
|
|
mov ecx, CSR_RXPOLL
|
|
call dword [device.read_bcr]
|
|
call dword [device.write_bcr]
|
|
jmp .L10
|
|
.L9:
|
|
mov [device.name], device_l9
|
|
; mov [device.fdx], 1
|
|
mov [device.mii], 1
|
|
.L10:
|
|
DEBUGF 1,"device name: %s\n", [device.name]
|
|
|
|
cmp [device.fset], 1
|
|
jne .L11
|
|
mov ecx, BCR_BUSCTL
|
|
call [device.read_bcr]
|
|
or eax, 0x800
|
|
call [device.write_bcr]
|
|
|
|
mov ecx, CSR_DMACTL
|
|
call [device.read_csr]
|
|
; and eax, 0xc00
|
|
; or eax, 0xc00
|
|
mov eax, 0xc00
|
|
call [device.write_csr]
|
|
|
|
mov [device.dxsuflo],1
|
|
mov [device.ltint],1
|
|
.L11:
|
|
|
|
make_bus_master [device.pci_bus], [device.pci_dev]
|
|
|
|
mov [device.options], PORT_ASEL
|
|
mov [device.mode_], MODE_RXD + MODE_TXD ; disable receive and transmit
|
|
mov [device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
|
|
|
|
mov dword [device.filter], 0
|
|
mov dword [device.filter+4], 0
|
|
|
|
align 4
|
|
reset:
|
|
|
|
; attach int handler
|
|
|
|
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
|
|
@@:
|
|
|
|
mov edx, [device.io_addr]
|
|
|
|
call [device.sw_reset]
|
|
|
|
; Switch pcnet32 to 32bit mode
|
|
mov ecx, BCR_SSTYLE
|
|
mov eax, 2
|
|
call [device.write_bcr]
|
|
|
|
; set/reset autoselect bit
|
|
mov ecx, BCR_MISCCFG
|
|
call [device.read_bcr]
|
|
and eax, not 2
|
|
test [device.options], PORT_ASEL
|
|
jz @f
|
|
or eax, 2
|
|
@@:
|
|
call [device.write_bcr]
|
|
|
|
; Handle full duplex setting
|
|
cmp byte [device.full_duplex], 0
|
|
je .duplex_ok
|
|
mov ecx, BCR_DUPLEX
|
|
call [device.read_bcr]
|
|
and eax, not 3
|
|
test [device.options], PORT_FD
|
|
jz @f
|
|
or eax, 1
|
|
cmp [device.options], PORT_FD or PORT_AUI
|
|
jne .set_duplex
|
|
or eax, 2
|
|
jmp .set_duplex
|
|
@@:
|
|
test [device.options], PORT_ASEL
|
|
jz .set_duplex
|
|
cmp [device.chip_version], 0x2627
|
|
jne .set_duplex
|
|
or eax, 3
|
|
.set_duplex:
|
|
mov ecx, BCR_DUPLEX
|
|
call [device.write_bcr]
|
|
.duplex_ok:
|
|
|
|
; set/reset GPSI bit in test register
|
|
mov ecx, 124
|
|
call [device.read_csr]
|
|
mov ecx, [device.options]
|
|
and ecx, PORT_PORTSEL
|
|
cmp ecx, PORT_GPSI
|
|
jne @f
|
|
or eax, 0x10
|
|
@@:
|
|
call [device.write_csr]
|
|
cmp [device.mii], 0
|
|
je .L6
|
|
test [device.options], PORT_ASEL
|
|
jnz .L6
|
|
mov ecx, BCR_MIICTL
|
|
call [device.read_bcr]
|
|
and eax, not 0x38
|
|
test [device.options], PORT_FD
|
|
jz @f
|
|
or eax, 0x10
|
|
@@:
|
|
test [device.options], PORT_100
|
|
jz @f
|
|
or eax, 0x08
|
|
@@:
|
|
call [device.write_bcr]
|
|
jmp .L9
|
|
.L6:
|
|
test [device.options], PORT_ASEL
|
|
jz .L9
|
|
mov ecx, BCR_MIICTL
|
|
DEBUGF 1,"ASEL, enable auto-negotiation\n"
|
|
call [device.read_bcr]
|
|
and eax, not 0x98
|
|
or eax, 0x20
|
|
call [device.write_bcr]
|
|
.L9:
|
|
cmp [device.ltint], 0
|
|
je @f
|
|
mov ecx, 5
|
|
call [device.read_csr]
|
|
or eax, (1 shl 14)
|
|
call [device.write_csr]
|
|
@@:
|
|
mov eax, [device.options]
|
|
and eax, PORT_PORTSEL
|
|
shl eax, 7
|
|
mov [device.mode_], ax
|
|
mov dword [device.filter], -1
|
|
mov dword [device.filter+4], -1
|
|
|
|
call read_mac
|
|
|
|
lea esi, [device.mac]
|
|
lea edi, [device.phys_addr]
|
|
movsd
|
|
movsw
|
|
|
|
call init_ring
|
|
|
|
mov edx, [device.io_addr] ; init ring destroys edx
|
|
|
|
lea eax, [device.private]
|
|
GetRealAddr
|
|
push eax
|
|
and eax, 0xffff
|
|
mov ecx, 1
|
|
call [device.write_csr]
|
|
pop eax
|
|
shr eax, 16
|
|
mov ecx, 2
|
|
call [device.write_csr]
|
|
|
|
mov ecx, 4
|
|
mov eax, 0x0915
|
|
call [device.write_csr]
|
|
|
|
; Set the interrupt mask
|
|
mov ecx, CSR_IMR
|
|
mov eax, IMR
|
|
call [device.write_csr]
|
|
|
|
; Initialise the device
|
|
xor ecx, ecx
|
|
mov eax, CSR_INIT
|
|
call [device.write_csr]
|
|
|
|
mov esi, 100
|
|
; xor ecx, ecx
|
|
@@:
|
|
call [device.read_csr]
|
|
test ax, CSR_IDONE
|
|
jnz @f
|
|
|
|
dec esi
|
|
jnz @r
|
|
DEBUGF 1,"Initialize timeout!\n"
|
|
@@:
|
|
|
|
; Start the device and enable interrupts
|
|
xor ecx, ecx
|
|
mov eax, CSR_START + CSR_INTEN
|
|
call [device.write_csr]
|
|
|
|
; Set the mtu, kernel will be able to send now
|
|
mov [device.mtu], 1514
|
|
|
|
DEBUGF 1,"reset complete\n"
|
|
xor eax, eax
|
|
ret
|
|
|
|
|
|
align 4
|
|
init_ring:
|
|
|
|
DEBUGF 1,"init ring\n"
|
|
|
|
lea edi, [device.rx_ring]
|
|
mov eax, edi
|
|
GetRealAddr
|
|
mov [device.rx_ring_phys], eax
|
|
mov ecx, RX_RING_SIZE
|
|
.rx_init:
|
|
push ecx
|
|
stdcall KernelAlloc, PKT_BUF_SZ
|
|
pop ecx
|
|
mov [edi + descriptor.virtual], eax
|
|
GetRealAddr
|
|
mov [edi + descriptor.base], eax
|
|
mov [edi + descriptor.length], - PKT_BUF_SZ
|
|
mov [edi + descriptor.status], RXSTAT_OWN
|
|
mov dword [edi + descriptor.msg_length], 0 ; also clears misc field
|
|
add edi, descriptor.size
|
|
dec ecx
|
|
jnz .rx_init
|
|
|
|
lea edi, [device.tx_ring]
|
|
mov eax, edi
|
|
GetRealAddr
|
|
mov [device.tx_ring_phys], eax
|
|
mov ecx, TX_RING_SIZE
|
|
.tx_init:
|
|
mov [edi + descriptor.status], 0
|
|
add edi, descriptor.size
|
|
dec ecx
|
|
jnz .tx_init
|
|
|
|
mov [device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
|
|
|
|
mov [device.cur_tx], 0
|
|
mov [device.last_tx], 0
|
|
mov [device.cur_rx], 0
|
|
|
|
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], 1514
|
|
ja .nospace ; packet is too long
|
|
cmp dword [esp+8], 60
|
|
jb .nospace ; packet is too short
|
|
|
|
; check descriptor
|
|
lea edi, [device.tx_ring]
|
|
movzx eax, [device.cur_tx]
|
|
shl eax, 4
|
|
add edi, eax
|
|
|
|
test [edi + descriptor.status], TXCTL_OWN
|
|
jnz .nospace
|
|
; descriptor is free, use it
|
|
mov eax, [esp+4]
|
|
mov [edi + descriptor.virtual], eax
|
|
GetRealAddr
|
|
mov [edi + descriptor.base], eax
|
|
; set length
|
|
mov eax, [esp+8]
|
|
neg eax
|
|
mov [edi + descriptor.length], ax
|
|
; put to transfer queue
|
|
mov [edi + descriptor.status], TXCTL_OWN + TXCTL_STP + TXCTL_ENP
|
|
|
|
; trigger an immediate send
|
|
mov edx, [device.io_addr]
|
|
xor ecx, ecx ; CSR0
|
|
call [device.read_csr]
|
|
or eax, CSR_TX
|
|
call [device.write_csr]
|
|
|
|
; get next descriptor 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, ...
|
|
inc [device.cur_tx]
|
|
and [device.cur_tx], TX_RING_SIZE - 1
|
|
DEBUGF 2," - Packet Sent! "
|
|
|
|
; Update stats
|
|
inc [device.packets_tx]
|
|
mov eax, [esp+8]
|
|
add dword [device.bytes_tx], eax
|
|
adc dword [device.bytes_tx + 4], 0
|
|
|
|
.finish:
|
|
DEBUGF 2," - Done!\n"
|
|
xor eax, eax
|
|
ret 8
|
|
|
|
.nospace:
|
|
DEBUGF 1, 'ERROR: no free transmit descriptors\n'
|
|
stdcall KernelFree, [esp+4]
|
|
or eax, -1
|
|
ret 8
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Interrupt handler ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
int_handler:
|
|
|
|
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]
|
|
|
|
mov edx, [device.io_addr]
|
|
push ecx
|
|
xor ecx, ecx ; CSR0
|
|
call [device.read_csr] ; get IRQ reason
|
|
call [device.write_csr] ; write it back to ACK
|
|
pop ecx
|
|
test ax, ax
|
|
jnz .got_it
|
|
.continue:
|
|
add esi, 4
|
|
dec ecx
|
|
jnz .nextdevice
|
|
.nothing:
|
|
ret ; If no device was found, abort (The int was probably for a device, not registered to this driver)
|
|
|
|
.got_it:
|
|
DEBUGF 1,"Device: %x status: %x\n", ebx, eax:2
|
|
|
|
push ax
|
|
test ax, CSR_RINT
|
|
jz .not_receive
|
|
|
|
push ebx
|
|
.rx_loop:
|
|
pop ebx
|
|
movzx eax, [device.cur_rx]
|
|
shl eax, 4
|
|
lea edi, [device.rx_ring]
|
|
add edi, eax ; edi now points to current rx ring entry
|
|
|
|
mov ax, [edi + descriptor.status]
|
|
DEBUGF 1,"RX packet status: %x\n", eax:4
|
|
|
|
test ax, RXSTAT_OWN ; If this bit is set, the controller OWN's the packet, if not, we do
|
|
jnz .not_receive
|
|
|
|
test ax, RXSTAT_ENP
|
|
jz .not_receive
|
|
|
|
test ax, RXSTAT_STP
|
|
jz .not_receive
|
|
|
|
movzx ecx, [edi + descriptor.msg_length] ; get packet length in ecx
|
|
sub ecx, 4 ;
|
|
|
|
; Set pointers for ETH_input
|
|
push ebx
|
|
|
|
push .rx_loop ; return address
|
|
push ecx ; packet size
|
|
push [edi + descriptor.virtual] ; packet address
|
|
|
|
; Update stats
|
|
add dword [device.bytes_rx], ecx
|
|
adc dword [device.bytes_rx + 4], 0
|
|
inc [device.packets_rx]
|
|
|
|
; now allocate a new buffer
|
|
stdcall KernelAlloc, PKT_BUF_SZ ; Allocate a buffer for the next packet
|
|
mov [edi + descriptor.virtual], eax ; set virtual address
|
|
GetRealAddr
|
|
mov [edi + descriptor.base], eax ; and real address
|
|
|
|
; mov word [edi + descriptor.length], - PKT_BUF_SZ
|
|
mov [edi + descriptor.status], RXSTAT_OWN ; give it back to PCnet controller
|
|
|
|
inc [device.cur_rx] ; set next receive descriptor
|
|
and [device.cur_rx], RX_RING_SIZE - 1
|
|
|
|
jmp Eth_input
|
|
|
|
.not_receive:
|
|
pop ax
|
|
|
|
test ax, CSR_TINT
|
|
jz .not_transmit
|
|
|
|
.tx_loop:
|
|
lea edi, [device.tx_ring]
|
|
movzx eax, [device.last_tx]
|
|
shl eax, 4
|
|
add edi, eax
|
|
|
|
test [edi + descriptor.status], TXCTL_OWN
|
|
jnz .not_transmit
|
|
|
|
mov eax, [edi + descriptor.virtual]
|
|
test eax, eax
|
|
jz .not_transmit
|
|
|
|
mov [edi + descriptor.virtual], 0
|
|
|
|
DEBUGF 1,"Removing packet %x from memory\n", eax
|
|
|
|
stdcall KernelFree, eax
|
|
|
|
inc [device.last_tx]
|
|
and [device.last_tx], TX_RING_SIZE - 1
|
|
jmp .tx_loop
|
|
|
|
.not_transmit:
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Write MAC address ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
write_mac: ; in: mac pushed onto stack (as 3 words)
|
|
|
|
DEBUGF 1,"Writing MAC: %x-%x-%x-%x-%x-%x",[esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2
|
|
|
|
mov edx, [device.io_addr]
|
|
add dx, 2
|
|
xor eax, eax
|
|
|
|
mov ecx, CSR_PAR0
|
|
@@:
|
|
pop ax
|
|
call [device.write_csr]
|
|
DEBUGF 1,"."
|
|
inc ecx
|
|
cmp ecx, CSR_PAR2
|
|
jb @r
|
|
|
|
DEBUGF 1,"\n"
|
|
|
|
; Notice this procedure does not ret, but continues to read_mac instead.
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Read MAC address ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;
|
|
align 4
|
|
read_mac:
|
|
DEBUGF 1,"Reading MAC"
|
|
|
|
mov edx, [device.io_addr]
|
|
add dx, 6
|
|
@@:
|
|
dec dx
|
|
dec dx
|
|
in ax, dx
|
|
push ax
|
|
DEBUGF 1,"."
|
|
cmp edx, [device.io_addr]
|
|
ja @r
|
|
|
|
DEBUGF 1," %x-%x-%x-%x-%x-%x\n",[esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2
|
|
|
|
lea edi, [device.mac]
|
|
pop ax
|
|
stosw
|
|
pop ax
|
|
stosw
|
|
pop ax
|
|
stosw
|
|
|
|
ret
|
|
|
|
align 4
|
|
switch_to_wio:
|
|
|
|
DEBUGF 1,"Switching to 16-bit mode\n"
|
|
|
|
mov [device.read_csr], wio_read_csr
|
|
mov [device.write_csr], wio_write_csr
|
|
mov [device.read_bcr], wio_read_bcr
|
|
mov [device.write_bcr], wio_write_bcr
|
|
mov [device.read_rap], wio_read_rap
|
|
mov [device.write_rap], wio_write_rap
|
|
mov [device.sw_reset], wio_reset
|
|
|
|
ret
|
|
|
|
align 4
|
|
switch_to_dwio:
|
|
|
|
DEBUGF 1,"Switching to 32-bit mode\n"
|
|
|
|
mov [device.read_csr], dwio_read_csr
|
|
mov [device.write_csr], dwio_write_csr
|
|
mov [device.read_bcr], dwio_read_bcr
|
|
mov [device.write_bcr], dwio_write_bcr
|
|
mov [device.read_rap], dwio_read_rap
|
|
mov [device.write_rap], dwio_write_rap
|
|
mov [device.sw_reset], dwio_reset
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
align 4
|
|
wio_read_csr:
|
|
|
|
add edx, WIO_RAP
|
|
mov ax, cx
|
|
out dx, ax
|
|
add edx, WIO_RDP - WIO_RAP
|
|
in ax, dx
|
|
and eax, 0xffff
|
|
sub edx, WIO_RDP
|
|
|
|
ret
|
|
|
|
|
|
; eax - data
|
|
; ecx - index
|
|
align 4
|
|
wio_write_csr:
|
|
|
|
add edx, WIO_RAP
|
|
xchg eax, ecx
|
|
out dx, ax
|
|
xchg eax, ecx
|
|
add edx, WIO_RDP - WIO_RAP
|
|
out dx, ax
|
|
sub edx, WIO_RDP
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
align 4
|
|
wio_read_bcr:
|
|
|
|
add edx, WIO_RAP
|
|
mov ax, cx
|
|
out dx, ax
|
|
add edx, WIO_BDP - WIO_RAP
|
|
in ax, dx
|
|
and eax, 0xffff
|
|
sub edx, WIO_BDP
|
|
|
|
ret
|
|
|
|
|
|
; eax - data
|
|
; ecx - index
|
|
align 4
|
|
wio_write_bcr:
|
|
|
|
add edx, WIO_RAP
|
|
xchg eax, ecx
|
|
out dx, ax
|
|
xchg eax, ecx
|
|
add edx, WIO_BDP - WIO_RAP
|
|
out dx, ax
|
|
sub edx, WIO_BDP
|
|
|
|
ret
|
|
|
|
align 4
|
|
wio_read_rap:
|
|
|
|
add edx, WIO_RAP
|
|
in ax, dx
|
|
and eax, 0xffff
|
|
sub edx, WIO_RAP
|
|
|
|
ret
|
|
|
|
; eax - val
|
|
align 4
|
|
wio_write_rap:
|
|
|
|
add edx, WIO_RAP
|
|
out dx, ax
|
|
sub edx, WIO_RAP
|
|
|
|
ret
|
|
|
|
align 4
|
|
wio_reset:
|
|
|
|
push eax
|
|
add edx, WIO_RESET
|
|
in ax, dx
|
|
pop eax
|
|
sub edx, WIO_RESET
|
|
|
|
ret
|
|
|
|
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
align 4
|
|
dwio_read_csr:
|
|
|
|
add edx, DWIO_RAP
|
|
mov eax, ecx
|
|
out dx, eax
|
|
add edx, DWIO_RDP - DWIO_RAP
|
|
in eax, dx
|
|
and eax, 0xffff
|
|
sub edx, DWIO_RDP
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; eax - data
|
|
align 4
|
|
dwio_write_csr:
|
|
|
|
add edx, DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx, eax
|
|
add edx, DWIO_RDP - DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx, eax
|
|
sub edx, DWIO_RDP
|
|
|
|
ret
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
align 4
|
|
dwio_read_bcr:
|
|
|
|
add edx, DWIO_RAP
|
|
mov eax, ecx
|
|
out dx, eax
|
|
add edx, DWIO_BDP - DWIO_RAP
|
|
in eax, dx
|
|
and eax, 0xffff
|
|
sub edx, DWIO_BDP
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; eax - data
|
|
align 4
|
|
dwio_write_bcr:
|
|
|
|
add edx, DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx, eax
|
|
add edx, DWIO_BDP - DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx, eax
|
|
sub edx, DWIO_BDP
|
|
|
|
ret
|
|
|
|
align 4
|
|
dwio_read_rap:
|
|
|
|
add edx, DWIO_RAP
|
|
in eax, dx
|
|
and eax, 0xffff
|
|
sub edx, DWIO_RAP
|
|
|
|
ret
|
|
|
|
|
|
; eax - val
|
|
align 4
|
|
dwio_write_rap:
|
|
|
|
add edx, DWIO_RAP
|
|
out dx, eax
|
|
sub edx, DWIO_RAP
|
|
|
|
ret
|
|
|
|
align 4
|
|
dwio_reset:
|
|
|
|
push eax
|
|
add edx, DWIO_RESET
|
|
in eax, dx
|
|
pop eax
|
|
sub edx, DWIO_RESET
|
|
|
|
ret
|
|
|
|
|
|
|
|
; End of code
|
|
|
|
align 4 ; Place all initialised data here
|
|
|
|
devices dd 0
|
|
version dd (5 shl 16) or (API_VERSION and 0xFFFF)
|
|
my_service db 'PCnet',0 ; max 16 chars include zero
|
|
|
|
device_l2 db "PCnet/PCI 79C970",0
|
|
device_l4 db "PCnet/PCI II 79C970A",0
|
|
device_l5 db "PCnet/FAST 79C971",0
|
|
device_l6 db "PCnet/FAST+ 79C972",0
|
|
device_l7 db "PCnet/FAST III 79C973",0
|
|
device_l8 db "PCnet/Home 79C978",0
|
|
device_l9 db "PCnet/FAST III 79C975",0
|
|
|
|
options_mapping:
|
|
dd PORT_ASEL ; 0 Auto-select
|
|
dd PORT_AUI ; 1 BNC/AUI
|
|
dd PORT_AUI ; 2 AUI/BNC
|
|
dd PORT_ASEL ; 3 not supported
|
|
dd PORT_10BT or PORT_FD ; 4 10baseT-FD
|
|
dd PORT_ASEL ; 5 not supported
|
|
dd PORT_ASEL ; 6 not supported
|
|
dd PORT_ASEL ; 7 not supported
|
|
dd PORT_ASEL ; 8 not supported
|
|
dd PORT_MII ; 9 MII 10baseT
|
|
dd PORT_MII or PORT_FD ; 10 MII 10baseT-FD
|
|
dd PORT_MII ; 11 MII (autosel)
|
|
dd PORT_10BT ; 12 10BaseT
|
|
dd PORT_MII or PORT_100 ; 13 MII 100BaseTx
|
|
dd PORT_MII or PORT_100 or PORT_FD ; 14 MII 100BaseTx-FD
|
|
dd PORT_ASEL ; 15 not supported
|
|
|
|
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
|