2024-07-14 16:48:36 +00:00
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;; File: ne2k.inc
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;;
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;; Usefull links:
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2024-07-15 13:58:43 +00:00
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;; - <datasheet at https://web.archive.org/web/20010612150713/http://www.national.com/ds/DP/DP8390D.pdf>
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2024-07-14 16:48:36 +00:00
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NE2K_IOBASE = 0x300
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2024-07-15 13:58:43 +00:00
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; PAGE 0
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NE2K_CR = NE2K_IOBASE + 0x0
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NE2K_CR_PS1 = 0x80
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NE2K_CR_PS0 = 0x40
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NE2K_CR_RD2 = 0x20
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NE2K_CR_RD1 = 0x10
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NE2K_CR_RD0 = 0x08
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NE2K_CR_TXP = 0x04
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NE2K_CR_STA = 0x02
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NE2K_CR_STP = 0x01
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NE2K_CLDA0 = NE2K_IOBASE + 0x1
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NE2K_CLDA1 = NE2K_IOBASE + 0x2
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NE2K_BNRY = NE2K_IOBASE + 0x3
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NE2K_TSR = NE2K_IOBASE + 0x4
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NE2K_NCR = NE2K_IOBASE + 0x5
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NE2K_FIFO = NE2K_IOBASE + 0x6
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NE2K_ISR = NE2K_IOBASE + 0x7
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NE2K_CRDA0 = NE2K_IOBASE + 0x8
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NE2K_CRDA1 = NE2K_IOBASE + 0x9
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NE2K_RSR = NE2K_IOBASE + 0xC
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NE2K_CNTR0 = NE2K_IOBASE + 0xD
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NE2K_CNTR1 = NE2K_IOBASE + 0xE
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NE2K_CNTR2 = NE2K_IOBASE + 0xF
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NE2K_PSTART = NE2K_IOBASE + 0x1
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NE2K_PSTOP = NE2K_IOBASE + 0x2
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NE2K_TPSR = NE2K_IOBASE + 0x4
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NE2K_TBCR0 = NE2K_IOBASE + 0x5
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NE2K_TBCR1 = NE2K_IOBASE + 0x6
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NE2K_RSAR0 = NE2K_IOBASE + 0x8
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NE2K_RSAR1 = NE2K_IOBASE + 0x9
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NE2K_RBCR0 = NE2K_IOBASE + 0xA
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NE2K_RBCR1 = NE2K_IOBASE + 0xB
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NE2K_RCR = NE2K_IOBASE + 0xC
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NE2K_TCR = NE2K_IOBASE + 0xD
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NE2K_DCR = NE2K_IOBASE + 0xE
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NE2K_IMR = NE2K_IOBASE + 0xF
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; PAGE 1
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NE2K_PAR0 = NE2K_IOBASE + 0x1
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NE2K_PAR1 = NE2K_IOBASE + 0x2
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NE2K_PAR2 = NE2K_IOBASE + 0x3
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NE2K_PAR3 = NE2K_IOBASE + 0x4
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NE2K_PAR4 = NE2K_IOBASE + 0x5
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NE2K_PAR5 = NE2K_IOBASE + 0x6
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NE2K_CURR = NE2K_IOBASE + 0x7
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NE2K_MAR0 = NE2K_IOBASE + 0x8
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NE2K_MAR1 = NE2K_IOBASE + 0x9
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NE2K_MAR2 = NE2K_IOBASE + 0xA
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NE2K_MAR3 = NE2K_IOBASE + 0xB
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NE2K_MAR4 = NE2K_IOBASE + 0xC
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NE2K_MAR5 = NE2K_IOBASE + 0xD
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NE2K_MAR6 = NE2K_IOBASE + 0xE
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NE2K_MAR7 = NE2K_IOBASE + 0xF
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ne2k_init:
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2024-07-21 16:14:38 +00:00
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call ne2k_probe
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or eax, eax
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jnz @f
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mov esi, szMsgNe2kfound
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call klog
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2024-07-15 13:58:43 +00:00
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mov dx, NE2K_IOBASE
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in al, dx
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out dx, al
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mov al, NE2K_CR_STP
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out dx, al
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2024-07-21 16:14:38 +00:00
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@@:
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2024-07-15 13:58:43 +00:00
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ret
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2024-07-14 16:48:36 +00:00
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ne2k_probe:
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2024-07-21 16:14:38 +00:00
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mov dx, NE2K_IOBASE + NE2K_CR
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in al, dx
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and al, 0x27
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cmp al, 0x21
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jne @f
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xor eax, eax
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@@:
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2024-07-14 16:48:36 +00:00
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ret
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2024-07-14 20:39:48 +00:00
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ne2k_irq:
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iret
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2024-07-19 07:53:03 +00:00
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ne2k_device:
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db 'ne2k', 0, 0, 0, 0
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dd ne2k_init
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2024-07-21 16:14:38 +00:00
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szMsgNe2kfound db "NE2K: found", 0
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