forked from KolibriOS/kolibrios
b35a874c08
* pseudoheader for UDP checksum was wrong * network checksum for data with odd length was wrong * stack issues in ARP_add_entry fixed * more correct checking for new packets in pcnet driver git-svn-id: svn://kolibrios.org@1251 a494cfbc-eb01-0410-851d-a64ba20cac60
1675 lines
41 KiB
NASM
1675 lines
41 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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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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;; Status: under construction ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; $Revision$
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format MS COFF
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API_VERSION equ 0x01000100
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DEBUG equ 1
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__DEBUG__ equ 1
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__DEBUG_LEVEL__ equ 1
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MAX_PCNET equ 4
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MAX_ETH_FRAME_SIZE equ 1514
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include 'proc32.inc'
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include 'imports.inc'
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include 'fdo.inc'
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OS_BASE equ 0;
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new_app_base equ 0x60400000
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PROC_BASE equ OS_BASE+0x0080000
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public START
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public service_proc
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public version
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struc IOCTL {
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.handle dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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}
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virtual at 0
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IOCTL IOCTL
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end virtual
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struc ETH_DEVICE {
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; pointers to procedures
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.unload dd ?
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.reset dd ?
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.transmit dd ?
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.set_MAC dd ?
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.get_MAC dd ?
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.set_mode dd ?
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.get_mode dd ?
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; status
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.bytes_tx dq ?
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.bytes_rx dq ?
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.packets_tx dd ?
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.packets_rx dd ?
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.mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..)
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.name dd ?
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.mac dp ?
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; device specific
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.rx_buffer dd ?
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.tx_buffer dd ?
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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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; The following fields up to .tx_ring_phys inclusive form
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; initialization block for hardware; do not modify
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align 4 ; initialization block must be dword-aligned
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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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.rx_ring dd ?
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.tx_ring dd ?
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.cur_rx db ?
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.cur_tx db ?
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.dirty_rx dd ?
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.dirty_tx dd ?
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.tx_full db ?
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.options dd ?
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.full_duplex db ?
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.chip_version dd ?
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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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.access_read_csr dd ?
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.access_write_csr dd ?
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.access_read_bcr dd ?
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.access_write_bcr dd ?
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.access_read_rap dd ?
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.access_write_rap dd ?
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.access_reset dd ?
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.size:
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}
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virtual at 0
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device ETH_DEVICE
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end virtual
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struc buf_head {
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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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.reserved dd ?
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.size:
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}
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virtual at 0
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buf_head buf_head
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end virtual
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struc rx_desc_2 { ; Swstyle 2
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.rbadr dd ?
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.status dd ?
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.rfrtag dd ?
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |Address | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 |19-16|15-12|11-0 |
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |CRDA+00h| RBADR[31:0] |
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |CRDA+04h| OWN | ERR |FRAM |OFLO | CRC |BUFF | STP | ENP | BPE | PAM |LAFM | BAM | RES |1111 |BCNT |
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |CRDA+08h| RES | RFRTAG[14:0] |0000 |MCNT |
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; +--------+-----+-----------------------------------------------------------------------+-----+-----+
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; |CRDA+0Ch| USER SPACE | | |
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; +--------+-----------------------------------------------------------------------------+-----+-----+
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}
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struc rx_desc_3 { ; Swstyle 3
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.mcnt dd ?
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.status dd ?
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.rbadr dd ?
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |Address | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 |22-16|15-12|11-0 |
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |CRDA+00h| RES | RES | RES |0000 |MCNT |
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |CRDA+04h| OWN | ERR |FRAM |OFLO | CRC |BUFF | STP | ENP | BPE | RES |1111 |BCNT |
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; +--------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
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; |CRDA+08h| RBADR[31:0] |
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; +--------+-----------------------------------------------------------------------+
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; |CRDA+0Ch| USER SPACE |
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; +--------+-----------------------------------------------------------------------+
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}
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virtual at 0
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rx_desc rx_desc_2
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end virtual
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; PCI Bus defines
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PCI_HEADER_TYPE equ 0x0e ;8 bit
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PCI_BASE_ADDRESS_0 equ 0x10 ;32 bit
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PCI_BASE_ADDRESS_5 equ 0x24 ;32 bits
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PCI_BASE_ADDRESS_SPACE_IO equ 0x01
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PCI_VENDOR_ID equ 0x00 ;16 bit
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PCI_BASE_ADDRESS_IO_MASK equ 0xFFFFFFFC
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PCNET_PORT_AUI equ 0x00
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PCNET_PORT_10BT equ 0x01
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PCNET_PORT_GPSI equ 0x02
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PCNET_PORT_MII equ 0x03
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PCNET_PORT_PORTSEL equ 0x03
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PCNET_PORT_ASEL equ 0x04
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PCNET_PORT_100 equ 0x40
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PCNET_PORT_FD equ 0x80
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PCNET_DMA_MASK equ 0xffffffff
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PCNET_LOG_TX_BUFFERS equ 2
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PCNET_LOG_RX_BUFFERS equ 2
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PCNET_TX_RING_SIZE equ 4
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PCNET_TX_RING_MOD_MASK equ (PCNET_TX_RING_SIZE-1)
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PCNET_TX_RING_LEN_BITS equ (PCNET_LOG_TX_BUFFERS shl 12)
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PCNET_RX_RING_SIZE equ 4
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PCNET_RX_RING_MOD_MASK equ (PCNET_RX_RING_SIZE-1)
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PCNET_RX_RING_LEN_BITS equ (PCNET_LOG_RX_BUFFERS shl 4)
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PCNET_PKT_BUF_SZ equ 1544
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PCNET_PKT_BUF_SZ_NEG equ 0xf9f8
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PCNET_WIO_RDP equ 0x10
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PCNET_WIO_RAP equ 0x12
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PCNET_WIO_RESET equ 0x14
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PCNET_WIO_BDP equ 0x16
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PCNET_DWIO_RDP equ 0x10
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PCNET_DWIO_RAP equ 0x14
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PCNET_DWIO_RESET equ 0x18
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PCNET_DWIO_BDP equ 0x1C
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PCNET_TOTAL_SIZE equ 0x20
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; CSR registers
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PCNET_CSR_CSR equ 0x00
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PCNET_CSR_IAB0 equ 0x01
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PCNET_CSR_IAB1 equ 0x02
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PCNET_CSR_IMR equ 0x03
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PCNET_CSR_TFEAT equ 0x04
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PCNET_CSR_EXTCTL1 equ 0x05
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PCNET_CSR_DTBLLEN equ 0x06
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PCNET_CSR_EXTCTL2 equ 0x07
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PCNET_CSR_MAR0 equ 0x08
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PCNET_CSR_MAR1 equ 0x09
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PCNET_CSR_MAR2 equ 0x0A
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PCNET_CSR_MAR3 equ 0x0B
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PCNET_CSR_PAR0 equ 0x0C
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PCNET_CSR_PAR1 equ 0x0D
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PCNET_CSR_PAR2 equ 0x0E
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PCNET_CSR_MODE equ 0x0F
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PCNET_CSR_RXADDR0 equ 0x18
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PCNET_CSR_RXADDR1 equ 0x19
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PCNET_CSR_TXADDR0 equ 0x1E
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PCNET_CSR_TXADDR1 equ 0x1F
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PCNET_CSR_TXPOLL equ 0x2F
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PCNET_CSR_RXPOLL equ 0x31
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PCNET_CSR_RXRINGLEN equ 0x4C
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PCNET_CSR_TXRINGLEN equ 0x4E
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PCNET_CSR_DMACTL equ 0x50
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PCNET_CSR_BUSTIMER equ 0x52
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PCNET_CSR_MEMERRTIMEO equ 0x64
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PCNET_CSR_ONNOWMISC equ 0x74
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PCNET_CSR_ADVFEAT equ 0x7A
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PCNET_CSR_MACCFG equ 0x7D
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PCNET_CSR_CHIPID0 equ 0x58
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PCNET_CSR_CHIPID1 equ 0x59
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; Control and Status Register (CSR0)
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PCNET_CSR_INIT equ 1 shl 0
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PCNET_CSR_START equ 1 shl 1
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PCNET_CSR_STOP equ 1 shl 2
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PCNET_CSR_TX equ 1 shl 3
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PCNET_CSR_TXON equ 1 shl 4
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PCNET_CSR_RXON equ 1 shl 5
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PCNET_CSR_INTEN equ 1 shl 6
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PCNET_CSR_INTR equ 1 shl 7
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PCNET_CSR_IDONE equ 1 shl 8
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PCNET_CSR_TINT equ 1 shl 9
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PCNET_CSR_RINT equ 1 shl 10
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PCNET_CSR_MERR equ 1 shl 11
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PCNET_CSR_MISS equ 1 shl 12
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PCNET_CSR_CERR equ 1 shl 13
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; Interrupt masks and deferral control (CSR3)
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PCNET_IMR_BSWAP equ 0x0004
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PCNET_IMR_ENMBA equ 0x0008 ; enable modified backoff alg
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PCNET_IMR_DXMT2PD equ 0x0010
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PCNET_IMR_LAPPEN equ 0x0020 ; lookahead packet processing enb
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PCNET_IMR_DXSUFLO equ 0x0040 ; disable TX stop on underflow
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PCNET_IMR_IDONE equ 0x0100
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PCNET_IMR_TINT equ 0x0200
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PCNET_IMR_RINT equ 0x0400
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PCNET_IMR_MERR equ 0x0800
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PCNET_IMR_MISS equ 0x1000
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PCNET_IMR equ PCNET_IMR_TINT+PCNET_IMR_RINT+PCNET_IMR_IDONE+PCNET_IMR_MERR+PCNET_IMR_MISS
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; Test and features control (CSR4)
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PCNET_TFEAT_TXSTRTMASK equ 0x0004
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PCNET_TFEAT_TXSTRT equ 0x0008
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PCNET_TFEAT_RXCCOFLOWM equ 0x0010 ; Rx collision counter oflow
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PCNET_TFEAT_RXCCOFLOW equ 0x0020
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PCNET_TFEAT_UINT equ 0x0040
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PCNET_TFEAT_UINTREQ equ 0x0080
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PCNET_TFEAT_MISSOFLOWM equ 0x0100
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PCNET_TFEAT_MISSOFLOW equ 0x0200
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PCNET_TFEAT_STRIP_FCS equ 0x0400
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PCNET_TFEAT_PAD_TX equ 0x0800
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PCNET_TFEAT_TXDPOLL equ 0x1000
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PCNET_TFEAT_DMAPLUS equ 0x4000
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; Extended control and interrupt 1 (CSR5)
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PCNET_EXTCTL1_SPND equ 0x0001 ; suspend
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PCNET_EXTCTL1_MPMODE equ 0x0002 ; magic packet mode
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PCNET_EXTCTL1_MPENB equ 0x0004 ; magic packet enable
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PCNET_EXTCTL1_MPINTEN equ 0x0008 ; magic packet interrupt enable
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PCNET_EXTCTL1_MPINT equ 0x0010 ; magic packet interrupt
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PCNET_EXTCTL1_MPPLBA equ 0x0020 ; magic packet phys. logical bcast
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PCNET_EXTCTL1_EXDEFEN equ 0x0040 ; excessive deferral interrupt enb.
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PCNET_EXTCTL1_EXDEF equ 0x0080 ; excessive deferral interrupt
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PCNET_EXTCTL1_SINTEN equ 0x0400 ; system interrupt enable
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PCNET_EXTCTL1_SINT equ 0x0800 ; system interrupt
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PCNET_EXTCTL1_LTINTEN equ 0x4000 ; last TX interrupt enb
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PCNET_EXTCTL1_TXOKINTD equ 0x8000 ; TX OK interrupt disable
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; RX/TX descriptor len (CSR6)
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PCNET_DTBLLEN_RLEN equ 0x0F00
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PCNET_DTBLLEN_TLEN equ 0xF000
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; Extended control and interrupt 2 (CSR7)
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PCNET_EXTCTL2_MIIPDTINTE equ 0x0001
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PCNET_EXTCTL2_MIIPDTINT equ 0x0002
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PCNET_EXTCTL2_MCCIINTE equ 0x0004
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PCNET_EXTCTL2_MCCIINT equ 0x0008
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PCNET_EXTCTL2_MCCINTE equ 0x0010
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PCNET_EXTCTL2_MCCINT equ 0x0020
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PCNET_EXTCTL2_MAPINTE equ 0x0040
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PCNET_EXTCTL2_MAPINT equ 0x0080
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PCNET_EXTCTL2_MREINTE equ 0x0100
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PCNET_EXTCTL2_MREINT equ 0x0200
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PCNET_EXTCTL2_STINTE equ 0x0400
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PCNET_EXTCTL2_STINT equ 0x0800
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PCNET_EXTCTL2_RXDPOLL equ 0x1000
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PCNET_EXTCTL2_RDMD equ 0x2000
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PCNET_EXTCTL2_RXFRTG equ 0x4000
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PCNET_EXTCTL2_FASTSPNDE equ 0x8000
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; Mode (CSR15)
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PCNET_MODE_RXD equ 0x0001 ; RX disable
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PCNET_MODE_TXD equ 0x0002 ; TX disable
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PCNET_MODE_LOOP equ 0x0004 ; loopback enable
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PCNET_MODE_TXCRCD equ 0x0008
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PCNET_MODE_FORCECOLL equ 0x0010
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PCNET_MODE_RETRYD equ 0x0020
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PCNET_MODE_INTLOOP equ 0x0040
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PCNET_MODE_PORTSEL equ 0x0180
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PCNET_MODE_RXVPAD equ 0x2000
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PCNET_MODE_RXNOBROAD equ 0x4000
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PCNET_MODE_PROMISC equ 0x8000
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; BCR (Bus Control Registers)
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PCNET_BCR_MMRA equ 0x00 ; Master Mode Read Active
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PCNET_BCR_MMW equ 0x01 ; Master Mode Write Active
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PCNET_BCR_MISCCFG equ 0x02
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PCNET_BCR_LED0 equ 0x04
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PCNET_BCR_LED1 equ 0x05
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PCNET_BCR_LED2 equ 0x06
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PCNET_BCR_LED3 equ 0x07
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PCNET_BCR_DUPLEX equ 0x09
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PCNET_BCR_BUSCTL equ 0x12
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PCNET_BCR_EECTL equ 0x13
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PCNET_BCR_SSTYLE equ 0x14
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PCNET_BCR_PCILAT equ 0x16
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PCNET_BCR_PCISUBVENID equ 0x17
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PCNET_BCR_PCISUBSYSID equ 0x18
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PCNET_BCR_SRAMSIZE equ 0x19
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PCNET_BCR_SRAMBOUND equ 0x1A
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PCNET_BCR_SRAMCTL equ 0x1B
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PCNET_BCR_MIICTL equ 0x20
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PCNET_BCR_MIIADDR equ 0x21
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PCNET_BCR_MIIDATA equ 0x22
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PCNET_BCR_PCIVENID equ 0x23
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PCNET_BCR_PCIPCAP equ 0x24
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PCNET_BCR_DATA0 equ 0x25
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PCNET_BCR_DATA1 equ 0x26
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PCNET_BCR_DATA2 equ 0x27
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PCNET_BCR_DATA3 equ 0x28
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PCNET_BCR_DATA4 equ 0x29
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PCNET_BCR_DATA5 equ 0x2A
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PCNET_BCR_DATA6 equ 0x2B
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PCNET_BCR_DATA7 equ 0x2C
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PCNET_BCR_ONNOWPAT0 equ 0x2D
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PCNET_BCR_ONNOWPAT1 equ 0x2E
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PCNET_BCR_ONNOWPAT2 equ 0x2F
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PCNET_BCR_PHYSEL equ 0x31
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; RX status register
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PCNET_RXSTAT_BPE equ 0x0080 ; bus parity error
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PCNET_RXSTAT_ENP equ 0x0100 ; end of packet
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PCNET_RXSTAT_STP equ 0x0200 ; start of packet
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PCNET_RXSTAT_BUFF equ 0x0400 ; buffer error
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PCNET_RXSTAT_CRC equ 0x0800 ; CRC error
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PCNET_RXSTAT_OFLOW equ 0x1000 ; rx overrun
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PCNET_RXSTAT_FRAM equ 0x2000 ; framing error
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PCNET_RXSTAT_ERR equ 0x4000 ; error summary
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PCNET_RXSTAT_OWN equ 0x8000
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; TX status register
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PCNET_TXSTAT_TRC equ 0x0000000F ; transmit retries
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PCNET_TXSTAT_RTRY equ 0x04000000 ; retry
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PCNET_TXSTAT_LCAR equ 0x08000000 ; lost carrier
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PCNET_TXSTAT_LCOL equ 0x10000000 ; late collision
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PCNET_TXSTAT_EXDEF equ 0x20000000 ; excessive deferrals
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PCNET_TXSTAT_UFLOW equ 0x40000000 ; transmit underrun
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PCNET_TXSTAT_BUFF equ 0x80000000 ; buffer error
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PCNET_TXCTL_OWN equ 0x80000000
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PCNET_TXCTL_ERR equ 0x40000000 ; error summary
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PCNET_TXCTL_ADD_FCS equ 0x20000000 ; add FCS to pkt
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PCNET_TXCTL_MORE_LTINT equ 0x10000000
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PCNET_TXCTL_ONE equ 0x08000000
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PCNET_TXCTL_DEF equ 0x04000000
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PCNET_TXCTL_STP equ 0x02000000
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PCNET_TXCTL_ENP equ 0x01000000
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PCNET_TXCTL_BPE equ 0x00800000
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PCNET_TXCTL_MBO equ 0x0000F000
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PCNET_TXCTL_BUFSZ equ 0x00000FFF
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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 PCnet driver\n"
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stdcall RegService, my_service, service_proc
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ret
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.fail:
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.exit:
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xor eax, eax
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ret
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endp
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; proc SERVICE_PROC ;;
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;; ;;
|
|
;; (standard driver proc) ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
proc service_proc stdcall, ioctl:dword
|
|
|
|
mov edx, [ioctl]
|
|
mov eax, [ebx+IOCTL.io_code]
|
|
|
|
;------------------------------------------------------
|
|
|
|
cmp eax, 0 ;SRV_GETVERSION
|
|
jne @F
|
|
|
|
cmp [edx+IOCTL.out_size], 4
|
|
jl .fail
|
|
mov eax, [edx+IOCTL.output]
|
|
mov [eax], dword API_VERSION
|
|
|
|
xor eax, eax
|
|
ret
|
|
|
|
;------------------------------------------------------
|
|
@@:
|
|
cmp eax, 1 ;SRV_HOOK
|
|
jne .fail
|
|
|
|
mov eax, [esp]
|
|
|
|
cmp [edx + IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
|
|
jl .fail
|
|
|
|
mov eax, [edx + IOCTL.input]
|
|
cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given
|
|
jne .fail ; other types arent supported for this card yet
|
|
|
|
; check if the device is already listed
|
|
|
|
mov esi, PCNET_LIST
|
|
mov ecx, [PCNET_DEV]
|
|
test ecx, ecx
|
|
jz .firstdevice
|
|
mov eax, [edx+IOCTL.input] ; get the pci bus and device numbers
|
|
mov bx , [eax+1] ;
|
|
.nextdevice:
|
|
lodsd
|
|
cmp bx , word [eax + device.pci_bus] ; compare with pci and device num in RTL8139 list (notice the usage of word instead of byte)
|
|
je .find_devicenum ; Device is already loaded, let's find it's device number
|
|
|
|
loop .nextdevice
|
|
|
|
; This device doesnt have its own eth_device structure yet, lets create one
|
|
|
|
.firstdevice:
|
|
cmp [PCNET_DEV], MAX_PCNET ; First check if the driver can handle one more card
|
|
jge .fail
|
|
|
|
push edx
|
|
stdcall KernelAlloc, device.size ; Allocate the buffer for eth_device structure
|
|
pop edx
|
|
test eax, eax
|
|
jz .fail
|
|
mov ebx, eax ; ebx is always used as a pointer to the structure (in driver, but also in kernel code)
|
|
|
|
; Fill in the direct call addresses into the struct
|
|
|
|
mov dword [ebx+device.reset], reset
|
|
mov dword [ebx+device.transmit], transmit
|
|
mov dword [ebx+device.get_MAC], read_mac
|
|
mov dword [ebx+device.set_MAC], write_mac
|
|
mov dword [ebx+device.unload], unload
|
|
mov dword [ebx+device.name], my_service
|
|
|
|
; save the pci bus and device numbers
|
|
|
|
mov eax, [edx+IOCTL.input]
|
|
mov cl , [eax+1]
|
|
mov [ebx+device.pci_bus], cl
|
|
mov cl , [eax+2]
|
|
mov [ebx+device.pci_dev], cl
|
|
|
|
; Now, it's time to find the base io addres of the PCI device
|
|
; TODO: implement check if bus and dev exist on this machine
|
|
|
|
mov edx, PCI_BASE_ADDRESS_0
|
|
.reg_check:
|
|
movzx eax, byte [ebx+device.pci_bus]
|
|
movzx ecx, byte [ebx+device.pci_dev]
|
|
|
|
push edx ecx
|
|
stdcall PciRead16, eax ,ecx ,edx
|
|
pop ecx edx
|
|
|
|
mov [ebx+device.io_addr], eax
|
|
and eax, PCI_BASE_ADDRESS_IO_MASK
|
|
test eax, eax
|
|
jz .inc_reg
|
|
mov eax, [ebx+device.io_addr]
|
|
and eax, PCI_BASE_ADDRESS_SPACE_IO
|
|
test eax, eax
|
|
jz .inc_reg
|
|
|
|
mov eax, [ebx+device.io_addr]
|
|
and eax, PCI_BASE_ADDRESS_IO_MASK
|
|
mov [ebx+device.io_addr], eax
|
|
jmp .got_io
|
|
|
|
.inc_reg:
|
|
add edx, 4
|
|
cmp edx, PCI_BASE_ADDRESS_5
|
|
jbe .reg_check
|
|
|
|
.got_io:
|
|
|
|
; We've found the io address, find IRQ now
|
|
|
|
movzx eax, byte [ebx+device.pci_bus]
|
|
movzx ecx, byte [ebx+device.pci_dev]
|
|
push ebx
|
|
stdcall PciRead8, eax ,ecx ,0x3c ; 0x3c is the offset where irq can be found
|
|
pop ebx
|
|
mov byte [ebx+device.irq_line], al
|
|
|
|
DEBUGF 1,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
|
|
[ebx+device.pci_dev]:1,[ebx+device.pci_bus]:1,[ebx+device.irq_line]:1,[ebx+device.io_addr]:4
|
|
|
|
|
|
; Allocate the Receive buffer
|
|
|
|
stdcall KernelAlloc, PCNET_RX_RING_SIZE * PCNET_PKT_BUF_SZ
|
|
test eax, eax
|
|
jz .err
|
|
mov [ebx+device.rx_buffer], eax ; Save the address to it into the device struct
|
|
|
|
; Allocate the Transmit Buffer
|
|
|
|
stdcall KernelAlloc, PCNET_TX_RING_SIZE * PCNET_PKT_BUF_SZ
|
|
test eax, eax
|
|
jz .err
|
|
mov [ebx+device.tx_buffer], eax
|
|
|
|
; Allocate the RX Ring
|
|
|
|
stdcall KernelAlloc, PCNET_RX_RING_SIZE * buf_head.size
|
|
test eax, eax
|
|
jz .err
|
|
mov dword [ebx + device.rx_ring], eax
|
|
call GetPgAddr
|
|
mov dword [ebx + device.rx_ring_phys], eax
|
|
|
|
; Allocate the TX ring
|
|
|
|
stdcall KernelAlloc, PCNET_TX_RING_SIZE * buf_head.size
|
|
test eax, eax
|
|
jz .err
|
|
mov dword [ebx + device.tx_ring], eax
|
|
call GetPgAddr
|
|
mov dword [ebx + device.tx_ring_phys], eax
|
|
|
|
; fill in some of the structure variables
|
|
|
|
call switch_to_wio
|
|
|
|
mov edi, [ebx + device.rx_ring]
|
|
mov ecx, PCNET_RX_RING_SIZE
|
|
mov eax, [ebx + device.rx_buffer]
|
|
call GetPgAddr
|
|
.rx_init:
|
|
mov [edi + buf_head.base], eax
|
|
mov [edi + buf_head.length], PCNET_PKT_BUF_SZ_NEG
|
|
mov [edi + buf_head.status], 0x8000
|
|
add eax, PCNET_PKT_BUF_SZ
|
|
; inc eax
|
|
add edi, buf_head.size
|
|
loop .rx_init
|
|
|
|
mov edi, [ebx + device.tx_ring]
|
|
mov ecx, PCNET_TX_RING_SIZE
|
|
mov eax, [ebx + device.tx_buffer]
|
|
call GetPgAddr
|
|
.tx_init:
|
|
mov [edi + buf_head.base], eax
|
|
add eax, PCNET_PKT_BUF_SZ
|
|
add edi, buf_head.size
|
|
loop .tx_init
|
|
|
|
mov [ebx + device.tlen_rlen],(PCNET_TX_RING_LEN_BITS or PCNET_RX_RING_LEN_BITS)
|
|
|
|
; Ok, the eth_device structure is ready, let's probe the device
|
|
; Because initialization fires IRQ, IRQ handler must be aware of this device
|
|
mov eax, [PCNET_DEV] ; Add the device structure to our device list
|
|
mov [PCNET_LIST+4*eax], ebx ; (IRQ handler uses this list to find device)
|
|
inc [PCNET_DEV] ;
|
|
|
|
call probe ; this function will output in eax
|
|
test eax, eax
|
|
jnz .destroy ; If an error occured, exit
|
|
|
|
call EthRegDev
|
|
cmp eax, -1
|
|
je .destroy
|
|
|
|
ret
|
|
|
|
; If the device was already loaded, find the device number and return it in eax
|
|
|
|
.find_devicenum:
|
|
DEBUGF 1,"Trying to find device number of already registered device\n"
|
|
mov ebx, eax
|
|
call EthStruc2Dev ; This kernel procedure converts a pointer to device struct in ebx
|
|
; into a device number in edi
|
|
mov eax, edi ; Application wants it in eax instead
|
|
DEBUGF 1,"Kernel says: %u\n", eax
|
|
ret
|
|
|
|
; If an error occured, remove all allocated data and exit (returning -1 in eax)
|
|
|
|
.destroy:
|
|
; todo: reset device into virgin state
|
|
|
|
dec [PCNET_DEV]
|
|
.err:
|
|
DEBUGF 1,"Error, removing all data !\n"
|
|
stdcall KernelFree, dword [ebx+device.rx_buffer]
|
|
stdcall KernelFree, dword [ebx+device.tx_buffer]
|
|
stdcall KernelFree, ebx
|
|
|
|
.fail:
|
|
or eax, -1
|
|
ret
|
|
|
|
;------------------------------------------------------
|
|
endp
|
|
|
|
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
|
|
;; ;;
|
|
;; Actual Hardware dependent code starts here ;;
|
|
;; ;;
|
|
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
|
|
|
|
align 4
|
|
unload:
|
|
; TODO: (in this particular order)
|
|
;
|
|
; - Stop the device
|
|
; - Detach int handler
|
|
; - Remove device from local list (RTL8139_LIST)
|
|
; - call unregister function in kernel
|
|
; - Remove all allocated structures and buffers the card used
|
|
|
|
or eax,-1
|
|
|
|
ret
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;
|
|
;; probe: enables the device (if it really is a PCnet device)
|
|
;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
probe:
|
|
mov edx, [ebx + 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, PCNET_WIO_RAP
|
|
out dx , ax
|
|
nop
|
|
nop
|
|
in ax , dx
|
|
sub edx, PCNET_WIO_RAP
|
|
cmp ax , 88
|
|
jne .try_dwio
|
|
|
|
DEBUGF 1,"Using WIO\n"
|
|
|
|
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, PCNET_DWIO_RAP
|
|
mov eax, 88
|
|
out dx , eax
|
|
nop
|
|
nop
|
|
in eax, dx
|
|
sub edx, PCNET_DWIO_RAP
|
|
and eax, 0xffff
|
|
cmp eax, 88
|
|
jne .no_dev
|
|
|
|
DEBUGF 1,"Using DWIO\n"
|
|
|
|
call switch_to_dwio
|
|
|
|
jmp .L1
|
|
|
|
.no_dev:
|
|
DEBUGF 1,"PCnet device not found!\n"
|
|
mov eax, 1
|
|
ret
|
|
.L1:
|
|
; TODO: remember to use WORD or DWORD operations
|
|
|
|
;;; stdcall Sleep, 10
|
|
|
|
;---------------------------------------------
|
|
; Switch to dword operations
|
|
|
|
; DEBUGF 1,"Switching to 32\n"
|
|
;
|
|
; mov ecx, PCNET_DWIO_RDP
|
|
; mov eax, 0
|
|
; call wio_write_csr
|
|
|
|
;---------------------------------------------
|
|
|
|
mov ecx, PCNET_CSR_CHIPID0
|
|
call [ebx + device.access_read_csr]
|
|
mov esi, eax
|
|
|
|
mov ecx, PCNET_CSR_CHIPID1
|
|
call [ebx + device.access_read_csr]
|
|
shl eax, 16
|
|
or eax, esi
|
|
|
|
mov ecx, eax
|
|
and ecx, 0xfff
|
|
cmp ecx, 3
|
|
jne .no_dev
|
|
|
|
shr eax, 12
|
|
and eax, 0xffff
|
|
mov [ebx + device.chip_version], eax
|
|
|
|
DEBUGF 1,"chip version ok\n"
|
|
mov [ebx + device.fdx], 0
|
|
mov [ebx + device.mii], 0
|
|
mov [ebx + device.fset], 0
|
|
mov [ebx + device.dxsuflo], 0
|
|
mov [ebx + device.ltint], 0
|
|
|
|
cmp eax, 0x2420
|
|
je .L2
|
|
cmp eax, 0x2430
|
|
je .L2
|
|
|
|
mov [ebx + device.fdx], 1
|
|
|
|
cmp eax, 0x2621
|
|
je .L4
|
|
cmp eax, 0x2623
|
|
je .L5
|
|
cmp eax, 0x2624
|
|
je .L6
|
|
cmp eax, 0x2625
|
|
je .L7
|
|
cmp eax, 0x2626
|
|
je .L8
|
|
cmp eax, 0x2627
|
|
je .L9
|
|
|
|
DEBUGF 1,"Invalid chip rev\n"
|
|
jmp .no_dev
|
|
.L2:
|
|
mov [ebx + device.name], device_l2
|
|
jmp .L10
|
|
.L4:
|
|
mov [ebx + device.name], device_l4
|
|
; mov [ebx + device.fdx], 1
|
|
jmp .L10
|
|
.L5:
|
|
mov [ebx + device.name], device_l5
|
|
; mov [ebx + device.fdx], 1
|
|
mov [ebx + device.mii], 1
|
|
mov [ebx + device.fset], 1
|
|
mov [ebx + device.ltint], 1
|
|
jmp .L10
|
|
.L6:
|
|
mov [ebx + device.name], device_l6
|
|
; mov [ebx + device.fdx], 1
|
|
mov [ebx + device.mii], 1
|
|
mov [ebx + device.fset], 1
|
|
jmp .L10
|
|
.L7:
|
|
mov [ebx + device.name], device_l7
|
|
; mov [ebx + device.fdx], 1
|
|
mov [ebx + device.mii], 1
|
|
jmp .L10
|
|
.L8:
|
|
mov [ebx + device.name], device_l8
|
|
; mov [ebx + device.fdx], 1
|
|
mov ecx, PCNET_CSR_RXPOLL
|
|
call dword [ebx + device.access_read_bcr]
|
|
call dword [ebx + device.access_write_bcr]
|
|
jmp .L10
|
|
.L9:
|
|
mov [ebx + device.name], device_l9
|
|
; mov [ebx + device.fdx], 1
|
|
mov [ebx + device.mii], 1
|
|
.L10:
|
|
DEBUGF 1,"device name: %s\n",[ebx + device.name]
|
|
|
|
cmp [ebx + device.fset], 1
|
|
jne .L11
|
|
mov ecx, PCNET_BCR_BUSCTL
|
|
call [ebx + device.access_read_bcr]
|
|
or eax, 0x800
|
|
call [ebx + device.access_write_bcr]
|
|
|
|
mov ecx, PCNET_CSR_DMACTL
|
|
call [ebx + device.access_read_csr]
|
|
; and eax, 0xc00
|
|
; or eax, 0xc00
|
|
mov eax, 0xc00
|
|
call [ebx + device.access_write_csr]
|
|
|
|
mov [ebx + device.dxsuflo],1
|
|
mov [ebx + device.ltint],1
|
|
.L11:
|
|
|
|
push ebx
|
|
call adjust_pci_device
|
|
pop ebx
|
|
|
|
DEBUGF 1,"PCI done\n"
|
|
mov eax, PCNET_PORT_ASEL
|
|
mov [ebx + device.options], eax
|
|
mov [ebx + device.mode_], word 0x0003
|
|
mov [ebx + device.tlen_rlen], word (PCNET_TX_RING_LEN_BITS or PCNET_RX_RING_LEN_BITS)
|
|
|
|
mov dword [ebx + device.filter], 0
|
|
mov dword [ebx + device.filter+4], 0
|
|
|
|
mov eax, PCNET_IMR
|
|
mov ecx, PCNET_CSR_IMR ; Write interrupt mask
|
|
call [ebx + device.access_write_csr]
|
|
|
|
if 0
|
|
|
|
mov ecx, PCNET_BCR_SSTYLE ; Select Software style 2 TODO: freebsd driver uses style 3, why?
|
|
mov eax, 2
|
|
call [ebx + device.access_write_bcr]
|
|
|
|
|
|
; ------------ really nescessary??? ----------------
|
|
lea eax, [ebx + device.private]
|
|
mov ecx, eax
|
|
and ecx, 0xFFF ; KolibriOS PAGE SIZE
|
|
call GetPgAddr
|
|
add eax, ecx
|
|
|
|
and eax, 0xffff
|
|
mov ecx, PCNET_CSR_IAB0
|
|
call [ebx + device.access_write_csr]
|
|
|
|
|
|
lea eax, [ebx + device.private]
|
|
mov ecx, eax
|
|
and ecx, 0xFFF ; KolibriOS PAGE SIZE
|
|
call GetPgAddr
|
|
add eax, ecx
|
|
|
|
shr eax,16
|
|
mov ecx, PCNET_CSR_IAB1
|
|
call [ebx + device.access_write_csr]
|
|
|
|
mov ecx, PCNET_CSR_CSR
|
|
mov eax, 1
|
|
call [ebx + device.access_write_csr]
|
|
; ------------------------------------------------
|
|
end if
|
|
|
|
; mov esi, 1
|
|
; call Sleep
|
|
|
|
|
|
reset:
|
|
|
|
; attach int handler
|
|
|
|
movzx eax, [ebx+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, [ebx + device.io_addr]
|
|
call [ebx + device.access_reset]
|
|
|
|
; Switch pcnet32 to 32bit mode
|
|
mov ecx, PCNET_BCR_SSTYLE
|
|
mov eax, 2
|
|
call [ebx + device.access_write_bcr]
|
|
|
|
; set/reset autoselect bit
|
|
mov ecx, PCNET_BCR_MISCCFG
|
|
call [ebx + device.access_read_bcr]
|
|
and eax,not 2
|
|
test [ebx + device.options], PCNET_PORT_ASEL
|
|
jz .L1
|
|
or eax, 2
|
|
.L1:
|
|
call [ebx + device.access_write_bcr]
|
|
|
|
|
|
; Handle full duplex setting
|
|
cmp byte [ebx + device.full_duplex], 0
|
|
je .L2
|
|
mov ecx, PCNET_BCR_DUPLEX
|
|
call [ebx + device.access_read_bcr]
|
|
and eax, not 3
|
|
test [ebx + device.options], PCNET_PORT_FD
|
|
jz .L3
|
|
or eax, 1
|
|
cmp [ebx + device.options], PCNET_PORT_FD or PCNET_PORT_AUI
|
|
jne .L4
|
|
or eax, 2
|
|
jmp .L4
|
|
.L3:
|
|
test [ebx + device.options], PCNET_PORT_ASEL
|
|
jz .L4
|
|
cmp [ebx + device.chip_version], 0x2627
|
|
jne .L4
|
|
or eax, 3
|
|
.L4:
|
|
mov ecx, PCNET_BCR_DUPLEX
|
|
call [ebx + device.access_write_bcr]
|
|
.L2:
|
|
|
|
|
|
; set/reset GPSI bit in test register
|
|
mov ecx, 124
|
|
call [ebx + device.access_read_csr]
|
|
mov ecx, [ebx + device.options]
|
|
and ecx, PCNET_PORT_PORTSEL
|
|
cmp ecx, PCNET_PORT_GPSI
|
|
jne .L5
|
|
or eax, 0x10
|
|
.L5:
|
|
call [ebx + device.access_write_csr]
|
|
cmp [ebx + device.mii], 0
|
|
je .L6
|
|
test [ebx + device.options], PCNET_PORT_ASEL
|
|
jnz .L6
|
|
mov ecx, PCNET_BCR_MIICTL
|
|
call [ebx + device.access_read_bcr]
|
|
and eax,not 0x38
|
|
test [ebx + device.options], PCNET_PORT_FD
|
|
jz .L7
|
|
or eax, 0x10
|
|
.L7:
|
|
test [ebx + device.options], PCNET_PORT_100
|
|
jz .L8
|
|
or eax, 0x08
|
|
.L8:
|
|
call [ebx + device.access_write_bcr]
|
|
jmp .L9
|
|
.L6:
|
|
test [ebx + device.options], PCNET_PORT_ASEL
|
|
jz .L9
|
|
mov ecx, PCNET_BCR_MIICTL
|
|
DEBUGF 1,"ASEL, enable auto-negotiation\n"
|
|
call [ebx + device.access_read_bcr]
|
|
and eax, not 0x98
|
|
or eax, 0x20
|
|
call [ebx + device.access_write_bcr]
|
|
.L9:
|
|
cmp [ebx + device.ltint],0
|
|
je .L10
|
|
mov ecx,5
|
|
call [ebx + device.access_read_csr]
|
|
or eax,(1 shl 14)
|
|
call [ebx + device.access_write_csr]
|
|
.L10:
|
|
mov eax,[ebx + device.options]
|
|
and eax,PCNET_PORT_PORTSEL
|
|
shl eax,7
|
|
mov [ebx + device.mode_],ax
|
|
mov dword [ebx + device.filter], -1
|
|
mov dword [ebx + device.filter+4], -1
|
|
|
|
call read_mac
|
|
|
|
lea esi, [ebx + device.mac]
|
|
lea edi, [ebx + device.phys_addr]
|
|
movsd
|
|
movsw
|
|
|
|
lea eax, [ebx + device.private]
|
|
mov ecx, eax
|
|
and ecx, 0xFFF ; KolibriOS PAGE SIZE
|
|
call GetPgAddr
|
|
add eax, ecx
|
|
|
|
push eax
|
|
and eax, 0xffff
|
|
mov ecx, 1
|
|
call [ebx + device.access_write_csr]
|
|
pop eax
|
|
shr eax,16
|
|
mov ecx,2
|
|
call [ebx + device.access_write_csr]
|
|
|
|
mov ecx,4
|
|
mov eax,0x0915
|
|
call [ebx + device.access_write_csr]
|
|
|
|
mov ecx,0
|
|
mov eax,1
|
|
call [ebx + device.access_write_csr]
|
|
|
|
mov [ebx + device.tx_full],0
|
|
mov [ebx + device.cur_rx],0
|
|
mov [ebx + device.cur_tx],0
|
|
mov [ebx + device.dirty_rx],0
|
|
mov [ebx + device.dirty_tx],0
|
|
|
|
mov ecx,100
|
|
.L11:
|
|
push ecx
|
|
xor ecx,ecx
|
|
call [ebx + device.access_read_csr]
|
|
pop ecx
|
|
test ax,0x100
|
|
jnz .L12
|
|
loop .L11
|
|
.L12:
|
|
|
|
DEBUGF 1,"hardware reset\n"
|
|
xor ecx, ecx
|
|
mov eax, 0x0002
|
|
call [ebx + device.access_write_csr]
|
|
|
|
xor ecx, ecx
|
|
call [ebx + device.access_read_csr]
|
|
|
|
xor ecx, ecx
|
|
mov eax, PCNET_CSR_INTEN or PCNET_CSR_START
|
|
call [ebx + device.access_write_csr]
|
|
|
|
DEBUGF 1,"PCNET reset complete\n"
|
|
xor eax, eax
|
|
ret
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Transmit ;;
|
|
;; ;;
|
|
;; In: buffer pointer in [esp] ;;
|
|
;; size of buffer in [esp+4] ;;
|
|
;; pointer to device structure in ebx ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
transmit:
|
|
DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp],[esp+4]
|
|
mov eax, [esp]
|
|
DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\
|
|
[eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\
|
|
[eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\
|
|
[eax+13]:2,[eax+12]:2
|
|
|
|
cmp dword [esp+4], 1514
|
|
jg .finish ; packet is too long
|
|
cmp dword [esp+4], 60
|
|
jl .finish ; packet is too short
|
|
|
|
; check descriptor
|
|
movzx eax, [ebx + device.cur_tx]
|
|
imul edi, eax, PCNET_PKT_BUF_SZ
|
|
shl eax, 4
|
|
add edi, [ebx + device.tx_buffer]
|
|
add eax, [ebx + device.tx_ring]
|
|
test byte [eax + buf_head.status + 1], 80h
|
|
jnz .nospace
|
|
; descriptor is free, copy data
|
|
mov esi, [esp]
|
|
mov ecx, [esp+4]
|
|
mov edx, ecx
|
|
shr ecx, 2
|
|
and edx, 3
|
|
rep movsd
|
|
mov ecx, edx
|
|
rep movsb
|
|
; set length
|
|
mov ecx, [esp+4]
|
|
neg ecx
|
|
mov [eax + buf_head.length], cx
|
|
; put to transfer queue
|
|
mov [eax + buf_head.status], 0x8300
|
|
|
|
; trigger an immediate send
|
|
xor ecx, ecx ; CSR0
|
|
call [ebx + device.access_read_csr]
|
|
or eax, PCNET_CSR_TX
|
|
call [ebx + device.access_write_csr]
|
|
|
|
; get next descriptor 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, ...
|
|
inc [ebx + device.cur_tx]
|
|
and [ebx + device.cur_tx], 3
|
|
DEBUGF 2," - Packet Sent! "
|
|
|
|
.finish:
|
|
DEBUGF 2," - Done!\n"
|
|
;;; call KernelFree
|
|
add esp, 4+4 ; pop (balance stack)
|
|
|
|
ret
|
|
|
|
.nospace:
|
|
DEBUGF 1, 'ERROR: no free transmit descriptors\n'
|
|
; todo: maybe somehow notify the kernel about the error?
|
|
add esp, 4+4
|
|
ret
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Interrupt handler ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
align 4
|
|
int_handler:
|
|
|
|
; DEBUGF 1,"IRQ %x ",eax:2 ; no, you cant replace 'eax:2' with 'al', this must be a bug in FDO
|
|
|
|
; find pointer of device wich made IRQ occur
|
|
|
|
mov esi, PCNET_LIST
|
|
mov ecx, [PCNET_DEV]
|
|
test ecx, ecx
|
|
jz .abort
|
|
.nextdevice:
|
|
mov ebx, dword [esi]
|
|
mov edx, [ebx + device.io_addr] ; get IRQ reason
|
|
|
|
push ecx
|
|
xor ecx, ecx ; CSR0
|
|
call [ebx + device.access_read_csr]
|
|
pop ecx
|
|
|
|
test al , al
|
|
js .got_it
|
|
|
|
add esi, 4
|
|
loop .nextdevice
|
|
|
|
ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver
|
|
|
|
.got_it:
|
|
;-------------------------------------------------------
|
|
; Possible reasons:
|
|
; initialization done - ignore
|
|
; transmit done - ignore
|
|
; packet received - handle
|
|
; Clear ALL IRQ reasons.
|
|
; N.B. One who wants to handle more than one reason must be ready
|
|
; to two or more reasons in one IRQ.
|
|
xor ecx, ecx
|
|
call [ebx + device.access_write_csr]
|
|
; Received packet ok?
|
|
|
|
test ax, PCNET_CSR_RINT
|
|
jz @f
|
|
|
|
.receiver_test_loop:
|
|
movzx eax, [ebx + device.cur_rx]
|
|
; and eax, PCNET_RX_RING_MOD_MASK
|
|
mov edi, eax
|
|
|
|
imul esi, eax, PCNET_PKT_BUF_SZ ;
|
|
add esi, [ebx + device.rx_buffer] ; esi now points to rx buffer
|
|
|
|
shl edi, 4 ; desc * 16 (16 is size of one ring entry)
|
|
add edi, [ebx + device.rx_ring] ; edi now points to current rx ring entry
|
|
|
|
mov cx , [edi + buf_head.status]
|
|
|
|
test cx , PCNET_RXSTAT_OWN ; If this bit is set, the controller OWN's the packet, if not, we do
|
|
jnz .abort
|
|
|
|
test cx , PCNET_RXSTAT_ENP
|
|
jz .abort
|
|
|
|
test cx , PCNET_RXSTAT_STP
|
|
jz .abort
|
|
|
|
movzx ecx, [edi + buf_head.msg_length] ; get packet length in ecx
|
|
sub ecx, 4 ;
|
|
|
|
push ecx
|
|
stdcall KernelAlloc, ecx ; Allocate a buffer to put packet into
|
|
pop ecx
|
|
test eax, eax ; Test if we allocated succesfully
|
|
jz .abort ;
|
|
|
|
push .receiver_test_loop ;
|
|
push ecx ; for eth_receiver
|
|
push eax ;
|
|
|
|
xchg edi, eax
|
|
push ecx
|
|
shr ecx, 2
|
|
cld
|
|
rep movsd
|
|
pop ecx
|
|
and ecx, 3
|
|
rep movsb
|
|
|
|
; mov word [eax + buf_head.length], PCNET_PKT_BUF_SZ_NEG
|
|
mov word [eax + buf_head.status], PCNET_RXSTAT_OWN ; Set OWN bit back to 1 (controller may write to tx-buffer again now)
|
|
|
|
inc [ebx + device.cur_rx] ; update descriptor
|
|
and [ebx + device.cur_rx], 3 ;
|
|
|
|
jmp EthReceiver ; Send the copied packet to kernel
|
|
|
|
.abort:
|
|
|
|
@@:
|
|
|
|
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, [ebx + device.io_addr]
|
|
add dx, 2
|
|
xor eax, eax
|
|
|
|
mov ecx, PCNET_CSR_PAR0
|
|
@@:
|
|
pop ax
|
|
call [ebx + device.access_write_csr]
|
|
DEBUGF 1,"."
|
|
inc ecx
|
|
cmp ecx, PCNET_CSR_PAR2
|
|
jl @r
|
|
|
|
DEBUGF 1,"\n"
|
|
|
|
; Notice this procedure does not ret, but continues to read_mac instead.
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Read MAC address ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
read_mac: ; T- OK
|
|
DEBUGF 1,"Reading MAC"
|
|
|
|
mov edx, [ebx + device.io_addr]
|
|
add dx, 6
|
|
@@:
|
|
dec dx
|
|
dec dx
|
|
in ax, dx
|
|
push ax
|
|
DEBUGF 1,"."
|
|
cmp edx, [ebx + device.io_addr]
|
|
jg @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, [ebx + device.mac]
|
|
pop ax
|
|
stosw
|
|
pop ax
|
|
stosw
|
|
pop ax
|
|
stosw
|
|
|
|
ret
|
|
|
|
|
|
switch_to_wio:
|
|
|
|
mov [ebx + device.access_read_csr], wio_read_csr
|
|
mov [ebx + device.access_write_csr], wio_write_csr
|
|
mov [ebx + device.access_read_bcr], wio_read_bcr
|
|
mov [ebx + device.access_write_bcr], wio_write_bcr
|
|
mov [ebx + device.access_read_rap], wio_read_rap
|
|
mov [ebx + device.access_write_rap], wio_write_rap
|
|
mov [ebx + device.access_reset], wio_reset
|
|
|
|
ret
|
|
|
|
switch_to_dwio:
|
|
|
|
mov [ebx + device.access_read_csr], dwio_read_csr
|
|
mov [ebx + device.access_write_csr], dwio_write_csr
|
|
mov [ebx + device.access_read_bcr], dwio_read_bcr
|
|
mov [ebx + device.access_write_bcr], dwio_write_bcr
|
|
mov [ebx + device.access_read_rap], dwio_read_rap
|
|
mov [ebx + device.access_write_rap], dwio_write_rap
|
|
mov [ebx + device.access_reset], dwio_reset
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
wio_read_csr:
|
|
|
|
add edx, PCNET_WIO_RAP
|
|
mov ax , cx
|
|
out dx , ax
|
|
add edx, PCNET_WIO_RDP - PCNET_WIO_RAP
|
|
in ax , dx
|
|
and eax, 0xffff
|
|
sub edx, PCNET_WIO_RDP
|
|
|
|
ret
|
|
|
|
|
|
; eax - data
|
|
; ecx - index
|
|
wio_write_csr:
|
|
|
|
add edx, PCNET_WIO_RAP
|
|
xchg eax, ecx
|
|
out dx , ax
|
|
xchg eax, ecx
|
|
add edx, PCNET_WIO_RDP - PCNET_WIO_RAP
|
|
out dx , ax
|
|
sub edx, PCNET_WIO_RDP
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
wio_read_bcr:
|
|
|
|
add edx, PCNET_WIO_RAP
|
|
mov ax , cx
|
|
out dx , ax
|
|
add edx, PCNET_WIO_BDP - PCNET_WIO_RAP
|
|
in ax , dx
|
|
and eax, 0xffff
|
|
sub edx, PCNET_WIO_BDP
|
|
|
|
ret
|
|
|
|
|
|
; eax - data
|
|
; ecx - index
|
|
wio_write_bcr:
|
|
|
|
add edx, PCNET_WIO_RAP
|
|
xchg eax, ecx
|
|
out dx , ax
|
|
xchg eax, ecx
|
|
add edx, PCNET_WIO_BDP - PCNET_WIO_RAP
|
|
out dx , ax
|
|
sub edx, PCNET_WIO_BDP
|
|
|
|
ret
|
|
|
|
|
|
wio_read_rap:
|
|
|
|
add edx, PCNET_WIO_RAP
|
|
in ax , dx
|
|
and eax, 0xffff
|
|
sub edx, PCNET_WIO_RAP
|
|
|
|
ret
|
|
|
|
; eax - val
|
|
wio_write_rap:
|
|
|
|
add edx, PCNET_WIO_RAP
|
|
out dx , ax
|
|
sub edx, PCNET_WIO_RAP
|
|
|
|
ret
|
|
|
|
|
|
wio_reset:
|
|
|
|
push eax
|
|
add edx, PCNET_WIO_RESET
|
|
in ax , dx
|
|
pop eax
|
|
sub edx, PCNET_WIO_RESET
|
|
|
|
ret
|
|
|
|
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
dwio_read_csr:
|
|
|
|
add edx, PCNET_DWIO_RAP
|
|
mov eax, ecx
|
|
out dx , eax
|
|
add edx, PCNET_DWIO_RDP - PCNET_DWIO_RAP
|
|
in eax, dx
|
|
and eax, 0xffff
|
|
sub edx, PCNET_DWIO_RDP
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; eax - data
|
|
dwio_write_csr:
|
|
|
|
add edx, PCNET_DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx , eax
|
|
add edx, PCNET_DWIO_RDP - PCNET_DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx , eax
|
|
sub edx, PCNET_DWIO_RDP
|
|
|
|
ret
|
|
|
|
; ecx - index
|
|
; return:
|
|
; eax - data
|
|
dwio_read_bcr:
|
|
|
|
add edx, PCNET_DWIO_RAP
|
|
mov eax, ecx
|
|
out dx , eax
|
|
add edx, PCNET_DWIO_BDP - PCNET_DWIO_RAP
|
|
in eax, dx
|
|
and eax, 0xffff
|
|
sub edx, PCNET_DWIO_BDP
|
|
|
|
ret
|
|
|
|
|
|
; ecx - index
|
|
; eax - data
|
|
dwio_write_bcr:
|
|
|
|
add edx, PCNET_DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx , eax
|
|
add edx, PCNET_DWIO_BDP - PCNET_DWIO_RAP
|
|
xchg eax, ecx
|
|
out dx , eax
|
|
sub edx, PCNET_DWIO_BDP
|
|
|
|
ret
|
|
|
|
|
|
dwio_read_rap:
|
|
|
|
add edx, PCNET_DWIO_RAP
|
|
in eax, dx
|
|
and eax, 0xffff
|
|
sub edx, PCNET_DWIO_RAP
|
|
|
|
ret
|
|
|
|
|
|
; eax - val
|
|
dwio_write_rap:
|
|
|
|
add edx, PCNET_DWIO_RAP
|
|
out dx , eax
|
|
sub edx, PCNET_DWIO_RAP
|
|
|
|
ret
|
|
|
|
|
|
dwio_reset:
|
|
|
|
push eax
|
|
add edx, PCNET_DWIO_RESET
|
|
in eax, dx
|
|
pop eax
|
|
sub edx, PCNET_DWIO_RESET
|
|
|
|
ret
|
|
|
|
|
|
|
|
adjust_pci_device:
|
|
;*******Get current setting************************
|
|
movzx edx, byte [ebx + device.pci_dev]
|
|
movzx ecx, byte [ebx + device.pci_bus]
|
|
push ecx edx
|
|
stdcall PciRead16, ecx ,edx ,0x04
|
|
pop edx ecx
|
|
; ;******see if its already set as bus master********
|
|
; and ax,5
|
|
; cmp ax,5
|
|
; je .Latency
|
|
;******Make card a bus master*******
|
|
or al, 5
|
|
stdcall PciWrite16, ecx ,edx ,0x04, eax
|
|
;******Check latency setting***********
|
|
.Latency:
|
|
;*******Get current latency setting************************
|
|
; mov al, 1 ;read a byte
|
|
; mov bh, [pci_dev]
|
|
; mov ah, [pci_bus]
|
|
; mov bl, 0x0D ;from Lantency Timer Register
|
|
; call pci_read_reg
|
|
;******see if its aat least 64 clocks********
|
|
; cmp ax,64
|
|
; jge PCNET_adjust_pci_device_Done
|
|
;******Set latency to 32 clocks*******
|
|
; mov cx, 64 ;value to write
|
|
; mov bh, [pci_dev]
|
|
; mov al, 1 ;write a byte
|
|
; mov ah, [pci_bus]
|
|
; mov bl, 0x0D ;to Lantency Timer Register
|
|
; call pci_write_reg
|
|
;******Check latency setting***********
|
|
.Done:
|
|
ret
|
|
|
|
|
|
|
|
|
|
; End of code
|
|
|
|
align 4 ; Place all initialised data here
|
|
|
|
PCNET_DEV 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 PCNET_PORT_ASEL ; 0 Auto-select
|
|
dd PCNET_PORT_AUI ; 1 BNC/AUI
|
|
dd PCNET_PORT_AUI ; 2 AUI/BNC
|
|
dd PCNET_PORT_ASEL ; 3 not supported
|
|
dd PCNET_PORT_10BT or PCNET_PORT_FD ; 4 10baseT-FD
|
|
dd PCNET_PORT_ASEL ; 5 not supported
|
|
dd PCNET_PORT_ASEL ; 6 not supported
|
|
dd PCNET_PORT_ASEL ; 7 not supported
|
|
dd PCNET_PORT_ASEL ; 8 not supported
|
|
dd PCNET_PORT_MII ; 9 MII 10baseT
|
|
dd PCNET_PORT_MII or PCNET_PORT_FD ; 10 MII 10baseT-FD
|
|
dd PCNET_PORT_MII ; 11 MII (autosel)
|
|
dd PCNET_PORT_10BT ; 12 10BaseT
|
|
dd PCNET_PORT_MII or PCNET_PORT_100 ; 13 MII 100BaseTx
|
|
dd PCNET_PORT_MII or PCNET_PORT_100 or PCNET_PORT_FD ; 14 MII 100BaseTx-FD
|
|
dd PCNET_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
|
|
|
|
PCNET_LIST rd MAX_PCNET ; This list contains all pointers to device structures the driver is handling
|