forked from KolibriOS/kolibrios
1454 lines
37 KiB
NASM
1454 lines
37 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; i8255x (Intel eepro 100) driver for KolibriOS ;;
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;; ;;
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;; Written by hidnplayr@kolibrios.org ;;
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;; ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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;; Version 2, June 1991 ;;
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;; ;;
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;; Some parts of this driver are based on the code of eepro100.c ;;
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;; from linux. ;;
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;; ;;
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;; Intel's programming manual for i8255x: ;;
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;; http://www.intel.com/design/network/manuals/8255x_opensdm.htm ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;TODO: use more RX buffers
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format PE DLL native
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entry START
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CURRENT_API = 0x0200
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COMPATIBLE_API = 0x0100
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API_VERSION = (COMPATIBLE_API shl 16) + CURRENT_API
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; configureable area
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MAX_DEVICES = 16 ; Maximum number of devices this driver may handle
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TX_RING_SIZE = 16 ; Number of packets in send ring buffer
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RX_RING_SIZE = 1 ; Number of packets in receive ring buffer
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__DEBUG__ = 1 ; 1 = on, 0 = off
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__DEBUG_LEVEL__ = 2 ; 1 = verbose, 2 = errors only
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; end configureable area
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section '.flat' readable writable executable
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include '../proc32.inc'
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include '../struct.inc'
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include '../macros.inc'
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include '../fdo.inc'
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include '../netdrv.inc'
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if (bsr TX_RING_SIZE)>(bsf TX_RING_SIZE)
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display 'TX_RING_SIZE must be a power of two'
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err
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end if
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if (RX_RING_SIZE)<>(1)
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display 'RX_RING_SIZE must be 1'
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err
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end if
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; I/O registers
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REG_SCB_STATUS = 0
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REG_SCB_CMD = 2
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REG_SCB_PTR = 4
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REG_PORT = 8
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REG_EEPROM = 14
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REG_MDI_CTRL = 16
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; Port commands
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PORT_SOFT_RESET = 0x0
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PORT_SELF_TEST = 0x1
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PORT_SELECTIVE_RESET = 0x2
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PORT_DUMP = 0x3
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PORT_DUMP_WAKEUP = 0x7
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PORT_PTR_MASK = 0xfffffff0
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; Serial EEPROM
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EE_SK = 1 shl 0 ; serial clock
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EE_CS = 1 shl 1 ; chip select
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EE_DI = 1 shl 2 ; data in
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EE_DO = 1 shl 3 ; data out
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EE_MASK = EE_SK or EE_CS or EE_DI or EE_DO
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; opcodes, first bit is start bit and must be 1
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EE_READ = 110b
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EE_WRITE = 101b
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EE_ERASE = 111b
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; The SCB accepts the following controls for the Tx and Rx units:
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CU_START = 0x0010
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CU_RESUME = 0x0020
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CU_STATSADDR = 0x0040
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CU_SHOWSTATS = 0x0050 ; Dump statistics counters.
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CU_CMD_BASE = 0x0060 ; Base address to add CU commands.
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CU_DUMPSTATS = 0x0070 ; Dump then reset stats counters.
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RX_START = 0x0001
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RX_RESUME = 0x0002
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RX_ABORT = 0x0004
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RX_ADDR_LOAD = 0x0006
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RX_RESUMENR = 0x0007
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INT_MASK = 0x0100
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DRVR_INT = 0x0200 ; Driver generated interrupt
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PHY_100a = 0x000003E0
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PHY_100c = 0x035002A8
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PHY_82555_tx = 0x015002A8
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PHY_nsc_tx = 0x5C002000
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PHY_82562_et = 0x033002A8
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PHY_82562_em = 0x032002A8
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PHY_82562_ek = 0x031002A8
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PHY_82562_eh = 0x017002A8
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PHY_82552_v = 0xd061004d
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PHY_unknown = 0xFFFFFFFF
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MAC_82557_D100_A = 0
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MAC_82557_D100_B = 1
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MAC_82557_D100_C = 2
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MAC_82558_D101_A4 = 4
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MAC_82558_D101_B0 = 5
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MAC_82559_D101M = 8
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MAC_82559_D101S = 9
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MAC_82550_D102 = 12
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MAC_82550_D102_C = 13
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MAC_82551_E = 14
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MAC_82551_F = 15
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MAC_82551_10 = 16
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MAC_unknown = 0xFF
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SCB_STATUS_RUS = 111100b ; RU Status
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RU_STATUS_IDLE = 0000b shl 2
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RU_STATUS_SUSPENDED = 0001b shl 2
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RU_STATUS_NO_RESOURCES = 0010b shl 2
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RU_STATUS_READY = 0100b shl 2
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SCB_STATUS_FCP = 1 shl 8 ; Flow Control Pause
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SCB_STATUS_SWI = 1 shl 10 ; Software Interrupt
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SCB_STATUS_MDI = 1 shl 11 ; MDI read/write complete
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SCB_STATUS_RNR = 1 shl 12 ; Receiver Not Ready
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SCB_STATUS_CNA = 1 shl 13 ; Command unit Not Active
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SCB_STATUS_FR = 1 shl 14 ; Frame received
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SCB_STATUS_CX_TNO = 1 shl 15 ; Command finished / Transmit Not Okay
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struct rxfd
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status dw ?
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command dw ?
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link dd ?
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rx_buf_addr dd ?
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count dw ?
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size dw ?
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packet rb 1500
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ends
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RXFD_STATUS_RC = 1 shl 0 ; Receive collision
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RXFD_STATUS_IA = 1 shl 1 ; IA mismatch
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RXFD_STATUS_NA = 1 shl 2 ; No address match
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RXFD_STATUS_RE = 1 shl 4 ; Receive Error
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RXFD_STATUS_TL = 1 shl 5 ; Type/length
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RXFD_STATUS_FS = 1 shl 7 ; Frame too short
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RXFD_STATUS_DMA_FAIL = 1 shl 8 ; DMA overrun failure
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RXFD_STATUS_NR = 1 shl 9 ; Out of buffer space; no resources
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RXFD_STATUS_MISA = 1 shl 10 ; Alignment error
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RXFD_STATUS_CRC_ERR = 1 shl 11 ; CRC error in aligned frame
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RXFD_STATUS_OK = 1 shl 13 ; Frame received and stored
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RXFD_STATUS_C = 1 shl 15 ; Completion of frame reception
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RXFD_CMD_SF = 1 shl 3
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RXFD_CMD_H = 1 shl 4 ; Header RFD
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RXFD_CMD_SUSPEND = 1 shl 14 ; Suspends RU after receiving the frame
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RXFD_CMD_EL = 1 shl 15 ; Last RFD in RFA
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struct txfd
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status dw ?
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command dw ?
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link dd ?
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desc_addr dd ?
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count dd ?
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buf_addr dd ?
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buf_size dd ?
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virt_addr dd ?
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dd ? ; alignment
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ends
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TXFD_CMD_IA = 1 shl 0
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TXFD_CMD_CFG = 1 shl 1
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TXFD_CMD_TX = 1 shl 2
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TXFD_CMD_TX_FLEX = 1 shl 3
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TXFD_CMD_SUSPEND = 1 shl 14
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struc confcmd {
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.status dw ?
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.command dw ?
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.link dd ?
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.data rb 64
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}
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struc lstats {
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.tx_good_frames dd ?
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.tx_coll16_errs dd ?
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.tx_late_colls dd ?
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.tx_underruns dd ?
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.tx_lost_carrier dd ?
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.tx_deferred dd ?
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.tx_one_colls dd ?
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.tx_multi_colls dd ?
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.tx_total_colls dd ?
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.rx_good_frames dd ?
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.rx_crc_errs dd ?
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.rx_align_errs dd ?
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.rx_resource_errs dd ?
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.rx_overrun_errs dd ?
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.rx_colls_errs dd ?
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.rx_runt_errs dd ?
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}
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struct device ETH_DEVICE
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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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rx_desc dd ?
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cur_tx dd ?
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last_tx dd ?
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link_timer dd ?
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ee_bus_width db ?
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irq_line db ?
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rb 0x100 - ($ and 0xff) ; align 256
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tx_ring rb TX_RING_SIZE*sizeof.txfd
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rb 0x100 - ($ and 0xff) ; align 256
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confcmd confcmd
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rb 0x100 - ($ and 0xff) ; align 256
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lstats lstats
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ends
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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 c, 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 driver\n"
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invoke 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, [edx + IOCTL.io_code]
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;------------------------------------------------------
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cmp eax, 0 ;SRV_GETVERSION
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jne @F
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cmp [edx + IOCTL.out_size], 4
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jb .fail
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mov eax, [edx + IOCTL.output]
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mov [eax], dword API_VERSION
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xor eax, eax
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ret
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;------------------------------------------------------
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@@:
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cmp eax, 1 ;SRV_HOOK
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jne .fail
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cmp [edx + IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
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jb .fail
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mov eax, [edx + IOCTL.input]
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cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given
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jne .fail ; other types arent supported for this card yet
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; check if the device is already listed
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mov esi, 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, [edx + 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[ebx + device.pci_bus]
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jne @f
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cmp ah, byte[ebx + 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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allocate_and_clear ebx, sizeof.device, .fail ; Allocate the buffer for device structure
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; Fill in the direct call addresses into the struct
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mov [ebx + device.reset], reset
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mov [ebx + device.transmit], transmit
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mov [ebx + device.unload], unload
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mov [ebx + device.name], devicename
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; save the pci bus and device numbers
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mov eax, [edx + IOCTL.input]
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movzx ecx, byte[eax+1]
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mov [ebx + device.pci_bus], ecx
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movzx ecx, byte[eax+2]
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mov [ebx + 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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stdcall PCI_find_io, [ebx + device.pci_bus], [ebx + device.pci_dev]
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mov [ebx + device.io_addr], eax
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; We've found the io address, find IRQ now
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invoke PciRead8, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.interrupt_line
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mov [ebx + device.irq_line], al
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DEBUGF 1,"Hooking into device, devfn:%x, bus:%x, irq:%x, addr:%x\n",\
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[ebx + device.pci_dev]:2,[ebx + device.pci_bus]:2,[ebx + device.irq_line]:2,[ebx + device.io_addr]:4
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; Ok, the eth_device structure is ready, let's probe the 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 .err ; If an error occured, exit
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mov [ebx + device.type], NET_TYPE_ETH
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invoke NetRegDev
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cmp eax, -1
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je .err
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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 2,"Trying to find device number of already registered device\n"
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invoke 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 2,"Kernel says: %u\n", eax
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ret
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; If an error occured, remove all allocated data and exit (returning -1 in eax)
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.err:
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invoke KernelFree, ebx
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.fail:
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or eax, -1
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ret
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;------------------------------------------------------
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endp
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;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
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;; ;;
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;; Actual Hardware dependent code starts here ;;
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;; ;;
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;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
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unload:
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cmp [ebx + device.link_timer], 0
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je @f
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invoke CancelTimerHS, [ebx + device.link_timer]
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@@:
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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 (device_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
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;
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;-------------
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align 4
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probe:
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DEBUGF 1,"Probing\n"
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; Make the device a bus master
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invoke PciRead32, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.command
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or al, PCI_CMD_MASTER or PCI_CMD_PIO
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invoke PciWrite32, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header00.command, eax
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;---------------------------
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; First, identify the device
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invoke PciRead32, [ebx + device.pci_bus], [ebx + device.pci_dev], PCI_header.vendor_id ; get device/vendor id
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DEBUGF 1,"Vendor_id=0x%x\n", ax
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cmp ax, 0x8086
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jne .notfound
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shr eax, 16
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DEBUGF 1,"Device_id=0x%x\n", ax
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mov ecx, DEVICE_IDs
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mov edi, device_id_list
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repne scasw
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jne .notfound
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jmp .found
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.notfound:
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DEBUGF 2,"Unsupported device!\n"
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or eax, -1
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ret
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.found:
|
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|
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|
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;----------
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;
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; Reset
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;
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;----------
|
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align 4
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reset:
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; Stop link check timer if it was already running
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cmp [ebx + device.link_timer], 0
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je @f
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invoke CancelTimerHS, [ebx + device.link_timer]
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@@:
|
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|
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; attach int handler
|
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movzx eax, [ebx + device.irq_line]
|
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DEBUGF 1,"Attaching int handler to irq %x\n", eax:1
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invoke AttachIntHandler, eax, int_handler, ebx
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test eax, eax
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jnz @f
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DEBUGF 2,"Could not attach int handler!\n"
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or eax, -1
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ret
|
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@@:
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DEBUGF 1,"Resetting\n"
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;----------------
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||
; Selective reset
|
||
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set_io [ebx + device.io_addr], 0
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||
set_io [ebx + device.io_addr], REG_EEPROM
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||
mov eax, PORT_SELECTIVE_RESET
|
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out dx, eax
|
||
|
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mov esi, 10
|
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invoke Sleep
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||
|
||
;-----------
|
||
; Soft reset
|
||
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set_io [ebx + device.io_addr], REG_PORT
|
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mov eax, PORT_SOFT_RESET
|
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out dx, eax
|
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|
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mov esi, 10
|
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invoke Sleep
|
||
|
||
;-------------
|
||
; Read PHY IDs
|
||
|
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mov cx, 1
|
||
mov dx, MII_PHYSID1
|
||
call mdio_read
|
||
DEBUGF 1, "PHY ID1: 0x%x\n", ax
|
||
|
||
mov cx, 1
|
||
mov dx, MII_PHYSID2
|
||
call mdio_read
|
||
DEBUGF 1, "PHY ID2: 0x%x\n", ax
|
||
|
||
;---------------------
|
||
; Read MAC from eeprom
|
||
|
||
call ee_get_width
|
||
call mac_read_eeprom
|
||
|
||
;---------------------------------
|
||
; Tell device where to store stats
|
||
|
||
lea eax, [ebx + device.lstats.tx_good_frames] ; lstats
|
||
invoke GetPhysAddr
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, CU_STATSADDR or INT_MASK
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
;------------------------
|
||
; setup RX base addr to 0
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
xor eax, eax
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, RX_ADDR_LOAD or INT_MASK
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
;-----------------------------
|
||
; Create RX and TX descriptors
|
||
|
||
call init_rx_ring
|
||
test eax, eax
|
||
jz .error
|
||
|
||
call init_tx_ring
|
||
|
||
|
||
;---------
|
||
; Start RX
|
||
|
||
DEBUGF 1, "Starting RX"
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
mov eax, [ebx + device.rx_desc]
|
||
invoke GetPhysAddr
|
||
add eax, NET_BUFF.data
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, RX_START or INT_MASK
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
;----------
|
||
; Set-up TX
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
xor eax, eax
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, CU_CMD_BASE or INT_MASK
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
;-------------------------
|
||
; Individual address setup
|
||
|
||
mov [ebx + device.confcmd.command], TXFD_CMD_IA or TXFD_CMD_SUSPEND
|
||
mov [ebx + device.confcmd.status], 0
|
||
lea eax, [ebx + device.tx_ring]
|
||
invoke GetPhysAddr
|
||
mov [ebx + device.confcmd.link], eax
|
||
lea edi, [ebx + device.confcmd.data]
|
||
lea esi, [ebx + device.mac]
|
||
movsd
|
||
movsw
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
lea eax, [ebx + device.confcmd.status]
|
||
invoke GetPhysAddr
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, CU_START or INT_MASK
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
;-------------
|
||
; Configure CU
|
||
|
||
mov [ebx + device.confcmd.command], TXFD_CMD_CFG or TXFD_CMD_SUSPEND
|
||
mov [ebx + device.confcmd.status], 0
|
||
lea eax, [ebx + device.confcmd.status]
|
||
invoke GetPhysAddr
|
||
mov [ebx + device.confcmd.link], eax
|
||
|
||
mov esi, confcmd_data
|
||
lea edi, [ebx + device.confcmd.data]
|
||
mov ecx, 22
|
||
rep movsb
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
lea eax, [ebx + device.confcmd.status]
|
||
invoke GetPhysAddr
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, CU_START ; expect Interrupts from now on
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
; Start media check timer
|
||
mov [ebx + device.state], ETH_LINK_DOWN
|
||
invoke TimerHS, 0, 50, check_media_mii, ebx
|
||
mov [ebx + device.link_timer], eax
|
||
|
||
mov [ebx + device.mtu], 1514
|
||
|
||
DEBUGF 1,"Reset complete\n"
|
||
|
||
xor eax, eax ; indicate that we have successfully reset the card
|
||
ret
|
||
|
||
.error:
|
||
or eax, -1
|
||
ret
|
||
|
||
|
||
align 4
|
||
init_rx_ring:
|
||
|
||
DEBUGF 1,"Creating ring\n"
|
||
|
||
;---------------------
|
||
; build rxfd structure
|
||
|
||
invoke NetAlloc, 2000
|
||
test eax, eax
|
||
jz .out_of_mem
|
||
mov [ebx + device.rx_desc], eax
|
||
mov esi, eax
|
||
invoke GetPhysAddr
|
||
add eax, NET_BUFF.data
|
||
mov [esi + sizeof.NET_BUFF + rxfd.status], 0
|
||
mov [esi + sizeof.NET_BUFF + rxfd.command], RXFD_CMD_EL or RXFD_CMD_SUSPEND
|
||
mov [esi + sizeof.NET_BUFF + rxfd.link], eax
|
||
mov [esi + sizeof.NET_BUFF + rxfd.count], 0
|
||
mov [esi + sizeof.NET_BUFF + rxfd.size], 1528
|
||
|
||
ret
|
||
|
||
.out_of_mem:
|
||
ret
|
||
|
||
|
||
|
||
|
||
align 4
|
||
init_tx_ring:
|
||
|
||
DEBUGF 1,"Creating TX ring\n"
|
||
|
||
lea esi, [ebx + device.tx_ring]
|
||
mov eax, esi
|
||
invoke GetPhysAddr
|
||
mov ecx, TX_RING_SIZE
|
||
.next_desc:
|
||
mov [esi + txfd.status], 0
|
||
mov [esi + txfd.command], 0
|
||
lea edx, [eax + txfd.buf_addr]
|
||
mov [esi + txfd.desc_addr], edx
|
||
add eax, sizeof.txfd
|
||
mov [esi + txfd.link], eax
|
||
mov [esi + txfd.count], 0x01208000 ; One buffer, 0x20 bytes of transmit threshold, end of frame
|
||
add esi, sizeof.txfd
|
||
dec ecx
|
||
jnz .next_desc
|
||
|
||
lea eax, [ebx + device.tx_ring]
|
||
invoke GetPhysAddr
|
||
mov dword[ebx + device.tx_ring + sizeof.txfd*(TX_RING_SIZE-1) + txfd.link], eax
|
||
|
||
mov [ebx + device.cur_tx], 0
|
||
mov [ebx + device.last_tx], 0
|
||
|
||
ret
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;; ;;
|
||
;; Transmit ;;
|
||
;; ;;
|
||
;; In: pointer to device structure in ebx ;;
|
||
;; Out: eax = 0 on success ;;
|
||
;; ;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
align 16
|
||
proc transmit stdcall bufferptr
|
||
|
||
spin_lock_irqsave
|
||
|
||
mov esi, [bufferptr]
|
||
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length]
|
||
lea eax, [esi + NET_BUFF.data]
|
||
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 [esi + NET_BUFF.length], 1514
|
||
ja .error
|
||
cmp [esi + NET_BUFF.length], 60
|
||
jb .error
|
||
|
||
; Get current TX descriptor
|
||
mov edi, [ebx + device.cur_tx]
|
||
mov eax, sizeof.txfd
|
||
mul edi
|
||
lea edi, [ebx + device.tx_ring + eax]
|
||
|
||
; Check if current descriptor is free or still in use
|
||
cmp [edi + txfd.status], 0
|
||
jne .overrun
|
||
|
||
; Fill in status and command values
|
||
mov [edi + txfd.status], 0
|
||
mov [edi + txfd.command], TXFD_CMD_SUSPEND or TXFD_CMD_TX or TXFD_CMD_TX_FLEX
|
||
mov [edi + txfd.count], 0x01208000
|
||
|
||
; Fill in buffer address and size
|
||
mov [edi + txfd.virt_addr], esi
|
||
mov eax, esi
|
||
add eax, [esi + NET_BUFF.offset]
|
||
push edi
|
||
invoke GetPhysAddr
|
||
pop edi
|
||
mov [edi + txfd.buf_addr], eax
|
||
mov ecx, [esi + NET_BUFF.length]
|
||
mov [edi + txfd.buf_size], ecx
|
||
|
||
; Inform device of the new/updated transmit descriptor
|
||
mov eax, edi
|
||
invoke GetPhysAddr
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
out dx, eax
|
||
|
||
; Start the transmit
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, CU_START
|
||
out dx, ax
|
||
|
||
; Update stats
|
||
inc [ebx + device.packets_tx]
|
||
add dword[ebx + device.bytes_tx], ecx
|
||
adc dword[ebx + device.bytes_tx + 4], 0
|
||
|
||
inc [ebx + device.cur_tx]
|
||
and [ebx + device.cur_tx], TX_RING_SIZE - 1
|
||
|
||
; Wait for command to complete
|
||
call cmd_wait
|
||
|
||
spin_unlock_irqrestore
|
||
xor eax, eax
|
||
ret
|
||
|
||
.error:
|
||
DEBUGF 2, "TX packet error\n"
|
||
inc [ebx + device.packets_tx_err]
|
||
invoke NetFree, [bufferptr]
|
||
|
||
spin_unlock_irqrestore
|
||
or eax, -1
|
||
ret
|
||
|
||
.overrun:
|
||
DEBUGF 2, "TX overrun\n"
|
||
inc [ebx + device.packets_tx_ovr]
|
||
invoke NetFree, [bufferptr]
|
||
|
||
spin_unlock_irqrestore
|
||
or eax, -1
|
||
ret
|
||
|
||
endp
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;
|
||
;; ;;
|
||
;; Interrupt handler ;;
|
||
;; ;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;
|
||
align 16
|
||
int_handler:
|
||
|
||
push ebx esi edi
|
||
|
||
mov ebx, [esp+4*4]
|
||
DEBUGF 1,"INT for 0x%x\n", ebx
|
||
|
||
; TODO? if we are paranoid, we can check that the value from ebx is present in the current device_list
|
||
|
||
; set_io [ebx + device.io_addr], 0 ; REG_SCB_STATUS = 0
|
||
set_io [ebx + device.io_addr], REG_SCB_STATUS
|
||
in ax, dx
|
||
test ax, ax
|
||
jz .nothing
|
||
out dx, ax ; send it back to ACK
|
||
|
||
DEBUGF 1,"Status: %x\n", ax
|
||
|
||
test ax, SCB_STATUS_FR ; did we receive a frame?
|
||
jz .no_rx
|
||
|
||
push ax
|
||
|
||
DEBUGF 1,"Receiving\n"
|
||
|
||
push ebx
|
||
.rx_loop:
|
||
pop ebx
|
||
|
||
mov esi, [ebx + device.rx_desc]
|
||
test [esi + sizeof.NET_BUFF + rxfd.status], RXFD_STATUS_C ; Completed?
|
||
jz .no_rx_
|
||
test [esi + sizeof.NET_BUFF + rxfd.status], RXFD_STATUS_OK ; OK?
|
||
jz .not_ok
|
||
|
||
DEBUGF 1,"rxfd status=0x%x\n", [esi + sizeof.NET_BUFF + rxfd.status]:4
|
||
|
||
movzx ecx, [esi + sizeof.NET_BUFF + rxfd.count]
|
||
and ecx, 0x3fff
|
||
|
||
push ebx
|
||
push .rx_loop
|
||
push esi
|
||
mov [esi + NET_BUFF.length], ecx
|
||
mov [esi + NET_BUFF.device], ebx
|
||
mov [esi + NET_BUFF.offset], NET_BUFF.data + rxfd.packet
|
||
|
||
; Update stats
|
||
add dword [ebx + device.bytes_rx], ecx
|
||
adc dword [ebx + device.bytes_rx + 4], 0
|
||
inc dword [ebx + device.packets_rx]
|
||
|
||
; allocate new descriptor
|
||
|
||
invoke NetAlloc, 2000
|
||
test eax, eax
|
||
jz .out_of_mem
|
||
mov [ebx + device.rx_desc], eax
|
||
mov esi, eax
|
||
invoke GetPhysAddr
|
||
add eax, NET_BUFF.data
|
||
mov [esi + sizeof.NET_BUFF + rxfd.status], 0
|
||
mov [esi + sizeof.NET_BUFF + rxfd.command], RXFD_CMD_EL or RXFD_CMD_SUSPEND
|
||
mov [esi + sizeof.NET_BUFF + rxfd.link], eax
|
||
mov [esi + sizeof.NET_BUFF + rxfd.count], 0
|
||
mov [esi + sizeof.NET_BUFF + rxfd.size], 1528
|
||
|
||
; restart RX
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
; mov eax, [ebx + device.rx_desc]
|
||
; invoke GetPhysAddr
|
||
; add eax, NET_BUFF.data
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, RX_START
|
||
out dx, ax
|
||
call cmd_wait
|
||
.out_of_mem:
|
||
|
||
; Hand the frame over to the kernel
|
||
jmp [EthInput]
|
||
|
||
.not_ok:
|
||
; Reset the FD
|
||
mov [esi + sizeof.NET_BUFF + rxfd.status], 0
|
||
mov [esi + sizeof.NET_BUFF + rxfd.command], RXFD_CMD_EL or RXFD_CMD_SUSPEND
|
||
mov [esi + sizeof.NET_BUFF + rxfd.count], 0
|
||
|
||
; Restart RX
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_SCB_PTR
|
||
mov eax, esi
|
||
invoke GetPhysAddr
|
||
add eax, NET_BUFF.data
|
||
out dx, eax
|
||
|
||
set_io [ebx + device.io_addr], REG_SCB_CMD
|
||
mov ax, RX_START
|
||
out dx, ax
|
||
call cmd_wait
|
||
|
||
push ebx
|
||
jmp .rx_loop
|
||
|
||
.no_rx_:
|
||
DEBUGF 1, "no more data\n"
|
||
pop ax
|
||
|
||
.no_rx:
|
||
|
||
test ax, SCB_STATUS_CNA
|
||
jz .no_tx
|
||
DEBUGF 1, "Command completed\n"
|
||
|
||
push eax
|
||
.loop_tx:
|
||
mov edi, [ebx + device.last_tx]
|
||
mov eax, sizeof.txfd
|
||
mul eax
|
||
lea edi, [ebx + device.tx_ring + eax]
|
||
|
||
cmp [edi + txfd.status], 0
|
||
je .tx_done
|
||
|
||
cmp [edi + txfd.virt_addr], 0
|
||
je .tx_done
|
||
|
||
DEBUGF 1,"Freeing buffer 0x%x\n", [edi + txfd.virt_addr]
|
||
|
||
push [edi + txfd.virt_addr]
|
||
mov [edi + txfd.virt_addr], 0
|
||
invoke NetFree
|
||
|
||
inc [ebx + device.last_tx]
|
||
and [ebx + device.last_tx], TX_RING_SIZE - 1
|
||
|
||
jmp .loop_tx
|
||
.tx_done:
|
||
pop eax
|
||
.no_tx:
|
||
|
||
test ax, RU_STATUS_NO_RESOURCES
|
||
jz .not_out_of_resources
|
||
|
||
DEBUGF 2, "Out of resources!\n"
|
||
|
||
.not_out_of_resources:
|
||
pop edi esi ebx
|
||
xor eax, eax
|
||
inc eax
|
||
|
||
ret
|
||
|
||
.nothing:
|
||
pop edi esi ebx
|
||
xor eax, eax
|
||
|
||
ret
|
||
|
||
|
||
|
||
align 16
|
||
proc check_media_mii stdcall dev:dword
|
||
|
||
spin_lock_irqsave
|
||
|
||
mov ebx, [dev]
|
||
|
||
mov ecx, 1 ;;;
|
||
mov edx, MII_BMSR
|
||
call mdio_read
|
||
|
||
mov ecx, 1 ;;;
|
||
mov edx, MII_BMSR
|
||
call mdio_read
|
||
|
||
mov ecx, eax
|
||
and eax, BMSR_LSTATUS
|
||
shr eax, 2
|
||
cmp eax, [ebx + device.state]
|
||
jne .changed
|
||
|
||
spin_unlock_irqrestore
|
||
ret
|
||
|
||
.changed:
|
||
test eax, eax
|
||
jz .update
|
||
|
||
test ecx, BMSR_ANEGCOMPLETE
|
||
jz .update
|
||
|
||
mov ecx, 1 ;;;
|
||
mov edx, MII_ADVERTISE
|
||
call mdio_read
|
||
mov esi, eax
|
||
|
||
mov ecx, 1 ;;;
|
||
mov edx, MII_LPA
|
||
call mdio_read
|
||
and eax, esi
|
||
|
||
test eax, LPA_100FULL
|
||
jz @f
|
||
mov eax, ETH_LINK_SPEED_100M or ETH_LINK_FULL_DUPLEX
|
||
jmp .update
|
||
@@:
|
||
|
||
test eax, LPA_100HALF
|
||
jz @f
|
||
mov eax, ETH_LINK_SPEED_100M
|
||
jmp .update
|
||
@@:
|
||
|
||
test eax, LPA_10FULL
|
||
jz @f
|
||
mov eax, ETH_LINK_SPEED_10M or ETH_LINK_FULL_DUPLEX
|
||
jmp .update
|
||
@@:
|
||
|
||
test eax, LPA_10HALF
|
||
jz @f
|
||
mov eax, ETH_LINK_SPEED_10M
|
||
jmp .update
|
||
@@:
|
||
|
||
mov eax, ETH_LINK_UNKNOWN
|
||
|
||
.update:
|
||
mov [ebx + device.state], eax
|
||
invoke NetLinkChanged
|
||
|
||
|
||
spin_unlock_irqrestore
|
||
ret
|
||
|
||
|
||
endp
|
||
|
||
|
||
align 4
|
||
cmd_wait:
|
||
|
||
in al, dx
|
||
test al, al
|
||
jnz cmd_wait
|
||
|
||
ret
|
||
|
||
|
||
|
||
align 4
|
||
ee_read: ; esi = address to read
|
||
|
||
DEBUGF 1,"Eeprom read from 0x%x\n", esi
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_EEPROM
|
||
|
||
;-----------------------------------------------------
|
||
; Prepend start bit + read opcode to the address field
|
||
; and shift it to the very left bits of esi
|
||
|
||
mov cl, 29
|
||
sub cl, [ebx + device.ee_bus_width]
|
||
shl esi, cl
|
||
or esi, EE_READ shl 29
|
||
|
||
movzx ecx, [ebx + device.ee_bus_width]
|
||
add ecx, 3
|
||
|
||
mov ax, 0x4800 + EE_CS
|
||
out dx, ax
|
||
call udelay
|
||
|
||
;-----------------------
|
||
; Write this to the chip
|
||
|
||
.loop:
|
||
mov al, EE_CS
|
||
shl esi, 1
|
||
jnc @f
|
||
or al, EE_DI
|
||
@@:
|
||
out dx, al
|
||
call udelay
|
||
|
||
or al, EE_SK
|
||
out dx, al
|
||
call udelay
|
||
|
||
loop .loop
|
||
|
||
;------------------------------
|
||
; Now read the data from eeprom
|
||
|
||
xor esi, esi
|
||
mov ecx, 16
|
||
|
||
.loop2:
|
||
shl esi, 1
|
||
mov al, EE_CS
|
||
out dx, al
|
||
call udelay
|
||
|
||
or al, EE_SK
|
||
out dx, al
|
||
call udelay
|
||
|
||
in al, dx
|
||
test al, EE_DO
|
||
jz @f
|
||
inc esi
|
||
@@:
|
||
|
||
loop .loop2
|
||
|
||
;-----------------------
|
||
; de-activate the eeprom
|
||
|
||
xor al, al
|
||
out dx, al
|
||
|
||
DEBUGF 1,"0x%x\n", esi:4
|
||
ret
|
||
|
||
|
||
|
||
align 4
|
||
ee_write: ; esi = address to write to, di = data
|
||
|
||
DEBUGF 1,"Eeprom write 0x%x to 0x%x\n", di, esi
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_EEPROM
|
||
|
||
;-----------------------------------------------------
|
||
; Prepend start bit + write opcode to the address field
|
||
; and shift it to the very left bits of esi
|
||
|
||
mov cl, 29
|
||
sub cl, [ebx + device.ee_bus_width]
|
||
shl esi, cl
|
||
or esi, EE_WRITE shl 29
|
||
|
||
movzx ecx, [ebx + device.ee_bus_width]
|
||
add ecx, 3
|
||
|
||
mov ax, 0x4800 + EE_CS ; enable chip
|
||
out dx, ax
|
||
|
||
;-----------------------
|
||
; Write this to the chip
|
||
|
||
.loop:
|
||
mov al, EE_CS
|
||
shl esi, 1
|
||
jnc @f
|
||
or al, EE_DI
|
||
@@:
|
||
out dx, al
|
||
call udelay
|
||
|
||
or al, EE_SK
|
||
out dx, al
|
||
call udelay
|
||
|
||
loop .loop
|
||
|
||
;-----------------------------
|
||
; Now write the data to eeprom
|
||
|
||
mov ecx, 16
|
||
|
||
.loop2:
|
||
mov al, EE_CS
|
||
shl di, 1
|
||
jnc @f
|
||
or al, EE_DI
|
||
@@:
|
||
out dx, al
|
||
call udelay
|
||
|
||
or al, EE_SK
|
||
out dx, al
|
||
call udelay
|
||
|
||
loop .loop2
|
||
|
||
;-----------------------
|
||
; de-activate the eeprom
|
||
|
||
xor al, al
|
||
out dx, al
|
||
|
||
|
||
ret
|
||
|
||
|
||
|
||
align 4
|
||
ee_get_width:
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_EEPROM
|
||
|
||
mov ax, 0x4800 + EE_CS ; activate eeprom
|
||
out dx, ax
|
||
call udelay
|
||
|
||
mov si, EE_READ shl 13
|
||
xor ecx, ecx
|
||
.loop:
|
||
mov al, EE_CS
|
||
shl si, 1
|
||
jnc @f
|
||
or al, EE_DI
|
||
@@:
|
||
out dx, ax
|
||
call udelay
|
||
|
||
or al, EE_SK
|
||
out dx, ax
|
||
call udelay
|
||
|
||
inc ecx
|
||
|
||
cmp ecx, 15
|
||
jae .give_up
|
||
|
||
in al, dx
|
||
test al, EE_DO
|
||
jnz .loop
|
||
|
||
xor al, al
|
||
out dx, al ; de-activate eeprom
|
||
|
||
sub cl, 3 ; dont count the opcode bits
|
||
mov [ebx + device.ee_bus_width], cl
|
||
DEBUGF 1, "Eeprom width=%u bit\n", ecx
|
||
|
||
ret
|
||
|
||
.give_up:
|
||
DEBUGF 2, "Eeprom not found!\n"
|
||
xor al, al
|
||
out dx, al ; de-activate eeprom
|
||
|
||
ret
|
||
|
||
|
||
; Wait a minimum of 2<>s
|
||
udelay:
|
||
pusha
|
||
mov esi, 1
|
||
invoke Sleep
|
||
popa
|
||
|
||
ret
|
||
|
||
|
||
|
||
; cx = phy addr
|
||
; dx = phy reg addr
|
||
|
||
; ax = data
|
||
|
||
align 4
|
||
mdio_read:
|
||
|
||
DEBUGF 1,"MDIO read\n"
|
||
|
||
shl ecx, 21 ; PHY addr
|
||
mov eax, ecx
|
||
shl edx, 16 ; PHY reg addr
|
||
or eax, edx
|
||
or eax, 10b shl 26 ; read opcode
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_MDI_CTRL
|
||
out dx, eax
|
||
|
||
.wait:
|
||
call udelay
|
||
in eax, dx
|
||
test eax, 1 shl 28 ; ready bit
|
||
jz .wait
|
||
|
||
ret
|
||
|
||
|
||
|
||
; ax = data
|
||
; cx = phy addr
|
||
; dx = phy reg addr
|
||
|
||
; ax = data
|
||
|
||
align 4
|
||
mdio_write:
|
||
|
||
DEBUGF 1,"MDIO write\n"
|
||
|
||
and eax, 0xffff
|
||
|
||
shl ecx, 21 ; PHY addr
|
||
shl edx, 16 ; PHY reg addr
|
||
|
||
or eax, ecx
|
||
or eax, edx
|
||
or eax, 01b shl 26 ; write opcode
|
||
|
||
set_io [ebx + device.io_addr], 0
|
||
set_io [ebx + device.io_addr], REG_MDI_CTRL
|
||
out dx, eax
|
||
|
||
.wait:
|
||
call udelay
|
||
in eax, dx
|
||
test eax, 1 shl 28 ; ready bit
|
||
jz .wait
|
||
|
||
ret
|
||
|
||
|
||
align 4
|
||
mac_read_eeprom:
|
||
|
||
mov esi, 0
|
||
call ee_read
|
||
mov word[ebx + device.mac], si
|
||
|
||
mov esi, 1
|
||
call ee_read
|
||
mov word[ebx + device.mac+2], si
|
||
|
||
mov esi, 2
|
||
call ee_read
|
||
mov word[ebx + device.mac+4], si
|
||
|
||
|
||
ret
|
||
|
||
|
||
; End of code
|
||
|
||
|
||
data fixups
|
||
end data
|
||
|
||
include '../peimport.inc'
|
||
|
||
my_service db 'I8255X', 0 ; max 16 chars include zero
|
||
devicename db 'Intel Etherexpress pro/100', 0
|
||
|
||
confcmd_data db 22, 0x08, 0, 0, 0, 0x80, 0x32, 0x03, 1
|
||
db 0, 0x2e, 0, 0x60, 0, 0xf2, 0x48, 0, 0x40, 0xf2
|
||
db 0x80, 0x3f, 0x05 ; 22 bytes total
|
||
|
||
|
||
device_id_list:
|
||
dw 0x1029
|
||
dw 0x1030
|
||
dw 0x1031
|
||
dw 0x1032
|
||
dw 0x1033
|
||
dw 0x1034
|
||
dw 0x1038
|
||
dw 0x1039
|
||
dw 0x103A
|
||
dw 0x103B
|
||
dw 0x103C
|
||
dw 0x103D
|
||
dw 0x103E
|
||
dw 0x1050
|
||
dw 0x1051
|
||
dw 0x1052
|
||
dw 0x1053
|
||
dw 0x1054
|
||
dw 0x1055
|
||
dw 0x1056
|
||
dw 0x1057
|
||
dw 0x1059
|
||
dw 0x1064
|
||
dw 0x1065
|
||
dw 0x1066
|
||
dw 0x1067
|
||
dw 0x1068
|
||
dw 0x1069
|
||
dw 0x106A
|
||
dw 0x106B
|
||
dw 0x1091
|
||
dw 0x1092
|
||
dw 0x1093
|
||
dw 0x1094
|
||
dw 0x1095
|
||
dw 0x10fe
|
||
dw 0x1209
|
||
dw 0x1229
|
||
dw 0x2449
|
||
dw 0x2459
|
||
dw 0x245D
|
||
dw 0x27DC
|
||
|
||
DEVICE_IDs = ($ - device_id_list) / 2
|
||
|
||
include_debug_strings ; All data wich FDO uses will be included here
|
||
|
||
align 4
|
||
devices dd 0 ; number of currently running devices
|
||
device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling
|
||
|