| 0,0 → 1,955 |
|---|
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| ;; ;; |
| ;; RTL8029.INC ;; |
| ;; ;; |
| ;; Ethernet driver for Menuet OS ;; |
| ;; ;; |
| ;; Version 0.2 31 July 2002 ;; |
| ;; ;; |
| ;; This driver is based on the ns8390 driver from ;; |
| ;; the etherboot 5.0.6 project. The copyright statement is ;; |
| ;; ;; |
| ;; GNU GENERAL PUBLIC LICENSE ;; |
| ;; Version 2, June 1991 ;; |
| ;; ;; |
| ;; remaining parts Copyright 2002 Mike Hibbett, ;; |
| ;; mikeh@oceanfree.net ;; |
| ;; ;; |
| ;; See file COPYING for details ;; |
| ;; ;; |
| ;; While this implementation handles only PCI bus RTL8029 ;; |
| ;; hardware, it can be easily adapted to other NE2000 clone ;; |
| ;; products. I just dont have any to try! ;; |
| ;; ;; |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| |
| |
| |
| ;******************************************************************** |
| ; Interface |
| ; rtl8029_reset |
| ; rtl8029_probe |
| ; rtl8029_poll |
| ; rtl8029_transmit |
| ; |
| ;******************************************************************** |
| |
| |
| |
| |
| ;************************************************************************** |
| ; 8390 Register Definitions |
| ;************************************************************************** |
| D8390_P0_COMMAND equ 0x00 |
| D8390_P0_PSTART equ 0x01 |
| D8390_P0_PSTOP equ 0x02 |
| D8390_P0_BOUND equ 0x03 |
| D8390_P0_TSR equ 0x04 |
| D8390_P0_TPSR equ 0x04 |
| D8390_P0_TBCR0 equ 0x05 |
| D8390_P0_TBCR1 equ 0x06 |
| D8390_P0_ISR equ 0x07 |
| D8390_P0_RSAR0 equ 0x08 |
| D8390_P0_RSAR1 equ 0x09 |
| D8390_P0_RBCR0 equ 0x0A |
| D8390_P0_RBCR1 equ 0x0B |
| D8390_P0_RSR equ 0x0C |
| D8390_P0_RCR equ 0x0C |
| D8390_P0_TCR equ 0x0D |
| D8390_P0_DCR equ 0x0E |
| D8390_P0_IMR equ 0x0F |
| D8390_P1_COMMAND equ 0x00 |
| D8390_P1_PAR0 equ 0x01 |
| D8390_P1_PAR1 equ 0x02 |
| D8390_P1_PAR2 equ 0x03 |
| D8390_P1_PAR3 equ 0x04 |
| D8390_P1_PAR4 equ 0x05 |
| D8390_P1_PAR5 equ 0x06 |
| D8390_P1_CURR equ 0x07 |
| D8390_P1_MAR0 equ 0x08 |
| |
| D8390_COMMAND_PS0 equ 0x0 ; Page 0 select |
| D8390_COMMAND_PS1 equ 0x40 ; Page 1 select |
| D8390_COMMAND_PS2 equ 0x80 ; Page 2 select |
| D8390_COMMAND_RD2 equ 0x20 ; Remote DMA control |
| D8390_COMMAND_RD1 equ 0x10 |
| D8390_COMMAND_RD0 equ 0x08 |
| D8390_COMMAND_TXP equ 0x04 ; transmit packet |
| D8390_COMMAND_STA equ 0x02 ; start |
| D8390_COMMAND_STP equ 0x01 ; stop |
| |
| D8390_COMMAND_RD2_STA equ 0x22 |
| D8390_COMMAND_RD2_STP equ 0x21 |
| D8390_COMMAND_RD1_STA equ 0x12 |
| D8390_COMMAND_RD0_STA equ 0x0A |
| D8390_COMMAND_PS0_RD2_STP equ 0x21 |
| D8390_COMMAND_PS1_RD2_STP equ 0x61 |
| D8390_COMMAND_PS0_RD2_STA equ 0x22 |
| D8390_COMMAND_PS0_TXP_RD2_STA equ 0x26 |
| |
| D8390_RCR_MON equ 0x20 ; monitor mode |
| |
| D8390_DCR_FT1 equ 0x40 |
| D8390_DCR_LS equ 0x08 ; Loopback select |
| D8390_DCR_WTS equ 0x01 ; Word transfer select |
| |
| D8390_DCR_FT1_LS equ 0x48 |
| D8390_DCR_WTS_FT1_LS equ 0x49 |
| |
| D8390_ISR_PRX equ 0x01 ; successful recv |
| D8390_ISR_PTX equ 0x02 ; successful xmit |
| D8390_ISR_RXE equ 0x04 ; receive error |
| D8390_ISR_TXE equ 0x08 ; transmit error |
| D8390_ISR_OVW equ 0x10 ; Overflow |
| D8390_ISR_CNT equ 0x20 ; Counter overflow |
| D8390_ISR_RDC equ 0x40 ; Remote DMA complete |
| D8390_ISR_RST equ 0x80 ; reset |
| |
| D8390_RSTAT_PRX equ 0x01 ; successful recv |
| D8390_RSTAT_CRC equ 0x02 ; CRC error |
| D8390_RSTAT_FAE equ 0x04 ; Frame alignment error |
| D8390_RSTAT_OVER equ 0x08 ; FIFO overrun |
| |
| D8390_TXBUF_SIZE equ 6 |
| D8390_RXBUF_END equ 32 |
| D8390_PAGE_SIZE equ 256 |
| |
| ETH_ALEN equ 6 |
| ETH_HLEN equ 14 |
| ETH_ZLEN equ 60 |
| ETH_FRAME_LEN equ 1514 |
| |
| FLAG_PIO equ 0x01 |
| FLAG_16BIT equ 0x02 |
| ASIC_PIO equ 0 |
| |
| VENDOR_NONE equ 0 |
| VENDOR_WD equ 1 |
| VENDOR_NOVELL equ 2 |
| VENDOR_3COM equ 3 |
| |
| NE_ASIC_OFFSET equ 0x10 |
| NE_RESET equ 0x0F ; Used to reset card |
| NE_DATA equ 0x00 ; Used to read/write NIC mem |
| |
| MEM_8192 equ 32 |
| MEM_16384 equ 64 |
| MEM_32768 equ 128 |
| |
| ISA_MAX_ADDR equ 0x400 |
| |
| uglobal |
| eth_flags: db 0 |
| eth_vendor: db 0 |
| eth_nic_base: dw 0 |
| eth_asic_base: dw 0 |
| eth_memsize: db 0 |
| eth_rx_start: db 0 |
| eth_tx_start: db 0 |
| eth_bmem: dd 0 |
| eth_rmem: dd 0 |
| romdata: db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 |
| endg |
| |
| iglobal |
| test_data: db 'NE*000 memory',0 |
| test_buffer: db ' ',0 |
| endg |
| |
| uglobal |
| eth_type: dw 0 |
| pkthdr: db 0,0,0,0 ; status, next, (short) len |
| pktoff: dw 0 |
| eth_rx_data_ptr: dd 0 |
| eth_tmp_len: dw 0 |
| endg |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; eth_pio_read |
| ; |
| ; Description |
| ; Read a frame from the ethernet card via Programmed I/O |
| ; src in ebx |
| ; cnt in ecx |
| ; dst in edi |
| ;*************************************************************************** |
| eth_pio_read: |
| mov al, [eth_flags] |
| and al, FLAG_16BIT |
| cmp al, 0 |
| je epr_001 |
| |
| inc ecx |
| and ecx, 0xFFFFFFFE |
| |
| epr_001: |
| mov al, D8390_COMMAND_RD2_STA |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_COMMAND |
| out dx, al |
| |
| mov al, cl |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RBCR0 |
| out dx, al |
| |
| mov al, ch |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RBCR1 |
| out dx, al |
| |
| mov al, bl |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RSAR0 |
| out dx, al |
| |
| mov al, bh |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RSAR1 |
| out dx, al |
| |
| mov al, D8390_COMMAND_RD0_STA |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_COMMAND |
| out dx, al |
| |
| mov dx, [eth_asic_base] |
| add dx, ASIC_PIO |
| |
| mov al, [eth_flags] |
| and al, FLAG_16BIT |
| cmp al, 0 |
| je epr_003 |
| |
| shr ecx, 1 |
| |
| epr_002: |
| ; 2 bytes at a time |
| in ax, dx |
| mov [edi], ax |
| add edi, 2 |
| loop epr_002 |
| ret |
| |
| epr_003: |
| ; 1 byte at a time |
| in al, dx |
| mov [edi], al |
| inc edi |
| loop epr_003 |
| ret |
| |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; eth_pio_write |
| ; |
| ; Description |
| ; writes a frame to the ethernet card via Programmed I/O |
| ; dst in ebx |
| ; cnt in ecx |
| ; src in esi |
| ;*************************************************************************** |
| eth_pio_write: |
| mov al, [eth_flags] |
| and al, FLAG_16BIT |
| cmp al, 0 |
| je epw_001 |
| |
| inc ecx |
| and ecx, 0xFFFFFFFE |
| |
| epw_001: |
| mov al, D8390_COMMAND_RD2_STA |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_COMMAND |
| out dx, al |
| |
| mov al, D8390_ISR_RDC |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_ISR |
| out dx, al |
| |
| |
| mov al, cl |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RBCR0 |
| out dx, al |
| |
| mov al, ch |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RBCR1 |
| out dx, al |
| |
| mov al, bl |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RSAR0 |
| out dx, al |
| |
| mov al, bh |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_RSAR1 |
| out dx, al |
| |
| mov al, D8390_COMMAND_RD1_STA |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_COMMAND |
| out dx, al |
| |
| mov dx, [eth_asic_base] |
| add dx, ASIC_PIO |
| |
| mov al, [eth_flags] |
| and al, FLAG_16BIT |
| cmp al, 0 |
| je epw_003 |
| |
| shr ecx, 1 |
| |
| epw_002: |
| ; 2 bytes at a time |
| mov ax, [esi] |
| add esi, 2 |
| out dx, ax |
| |
| loop epw_002 |
| jmp epw_004 |
| |
| epw_003: |
| ; 1 byte at a time |
| mov al, [esi] |
| inc esi |
| out dx, al |
| loop epw_003 |
| |
| epw_004: |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_ISR |
| |
| epw_005: |
| in al, dx |
| and al, D8390_ISR_RDC |
| cmp al, D8390_ISR_RDC |
| jne epw_005 |
| |
| ret |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; rtl8029_reset |
| ; Description |
| ; Place the chip (ie, the ethernet card) into a virgin state |
| ; No inputs |
| ; All registers destroyed |
| ; |
| ;*************************************************************************** |
| rtl8029_reset: |
| mov bx, [eth_nic_base] |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS0_RD2_STP |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_DCR |
| mov al, [eth_flags] |
| and al, FLAG_16BIT |
| cmp al, FLAG_16BIT |
| jne nsr_001 |
| |
| mov al, 0x49 |
| jmp nsr_002 |
| |
| nsr_001: |
| mov al, 0x48 |
| |
| nsr_002: |
| out dx, al |
| |
| xor al, al |
| |
| mov dx, bx |
| add dx, D8390_P0_RBCR0 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_RBCR1 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_RCR |
| mov al, 0x20 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_TCR |
| mov al, 2 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_TPSR |
| mov al, [eth_tx_start] |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_PSTART |
| mov al, [eth_rx_start] |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_PSTOP |
| mov al, [eth_memsize] |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_BOUND |
| mov al, [eth_memsize] |
| dec al |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_ISR |
| mov al, 0xff |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_IMR |
| xor al, al |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS1_RD2_STP |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P1_PAR0 |
| mov esi, node_addr |
| mov ecx, ETH_ALEN |
| |
| nsr_003: |
| mov al, [esi] |
| out dx, al |
| |
| inc esi |
| inc dx |
| loop nsr_003 |
| |
| mov dx, bx |
| add dx, D8390_P1_MAR0 |
| mov ecx, ETH_ALEN |
| |
| mov al, 0xff |
| |
| nsr_004: |
| out dx, al |
| inc dx |
| loop nsr_004 |
| |
| mov dx, bx |
| add dx, D8390_P1_CURR |
| mov al, [eth_rx_start] |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS0_RD2_STA |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_ISR |
| mov al, 0xff |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_TCR |
| mov al, 0 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_RCR |
| mov al, 4 |
| out dx, al |
| |
| ret |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; rtl8029_probe |
| ; Description |
| ; Searches for an ethernet card, enables it and clears the rx buffer |
| ; If a card was found, it enables the ethernet -> TCPIP link |
| ; |
| ;*************************************************************************** |
| rtl8029_probe: |
| mov eax, [io_addr] |
| mov [eth_nic_base], ax ; The IO address space is 16 bit only |
| |
| mov al, VENDOR_NONE |
| mov [eth_vendor], al |
| |
| mov al, [eth_vendor] |
| cmp al, VENDOR_NONE |
| |
| jne ep_check_have_vendor |
| xor eax, eax |
| mov [eth_bmem], eax |
| |
| mov al, FLAG_PIO |
| mov [eth_flags], al |
| |
| mov ax, [eth_nic_base] |
| add ax, NE_ASIC_OFFSET |
| mov [eth_asic_base], ax |
| |
| mov al, MEM_16384 |
| mov [eth_memsize], al |
| |
| mov al, 32 |
| mov [eth_tx_start], al |
| |
| add al, D8390_TXBUF_SIZE |
| mov [eth_rx_start], al |
| |
| mov dx, [eth_asic_base] |
| add dx, NE_RESET |
| |
| in al, dx |
| out dx, al |
| |
| in al, 0x84 |
| |
| mov bx, [eth_nic_base] |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_RD2_STP |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_RCR |
| mov al, D8390_RCR_MON |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_DCR |
| mov al, D8390_DCR_FT1_LS |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_PSTART |
| mov al, MEM_8192 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_PSTOP |
| mov al, MEM_16384 |
| out dx, al |
| |
| mov esi, test_data |
| mov ebx, 8192 |
| mov ecx, 14 |
| call eth_pio_write |
| |
| mov ebx, 8192 |
| mov ecx, 14 |
| mov edi, test_buffer |
| call eth_pio_read |
| |
| mov esi, test_buffer |
| mov edi, test_data |
| mov ecx, 13 |
| cld |
| rep cmpsb |
| |
| je ep_set_vendor |
| |
| mov al, [eth_flags] |
| or al, FLAG_16BIT |
| mov [eth_flags], al |
| |
| mov al, MEM_32768 |
| mov [eth_memsize], al |
| |
| mov al, 64 |
| mov [eth_tx_start], al |
| |
| add al, D8390_TXBUF_SIZE |
| mov [eth_rx_start], al |
| |
| mov bx, [eth_nic_base] |
| |
| mov dx, bx |
| add dx, D8390_P0_DCR |
| mov al, D8390_DCR_WTS_FT1_LS |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_PSTART |
| mov al, MEM_16384 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_PSTOP |
| mov al, MEM_32768 |
| out dx, al |
| |
| mov esi, test_data |
| mov ebx, 16384 |
| mov ecx, 14 |
| call eth_pio_write |
| |
| mov ebx, 16384 |
| mov ecx, 14 |
| mov edi, test_buffer |
| call eth_pio_read |
| |
| mov esi, test_buffer |
| mov edi, test_data |
| mov ecx, 13 |
| cld |
| rep cmpsb |
| |
| ep_set_vendor: |
| ; this bit is odd - probably left over from my hacking |
| mov ax, [eth_nic_base] |
| cmp ax, 0 |
| je rtl8029_exit |
| cmp ax, ISA_MAX_ADDR |
| jbe ep_001 |
| mov al, [eth_flags] |
| or al, FLAG_16BIT |
| mov [eth_flags], al |
| |
| ep_001: |
| mov al, VENDOR_NOVELL |
| mov [eth_vendor], al |
| |
| mov ebx, 0 |
| mov ecx, 16 |
| mov edi, romdata |
| call eth_pio_read |
| |
| |
| mov ecx, ETH_ALEN |
| mov esi, romdata |
| mov edi, node_addr |
| |
| mov bl, [eth_flags] |
| and bl, FLAG_16BIT |
| |
| ep_002: |
| mov al, [esi] |
| mov [edi], al |
| |
| inc edi |
| inc esi |
| cmp bl, FLAG_16BIT |
| jne ep_003 |
| |
| inc esi |
| |
| ep_003: |
| loop ep_002 |
| |
| ep_check_have_vendor: |
| mov al, [eth_vendor] |
| cmp al, VENDOR_NONE |
| je rtl8029_exit |
| |
| cmp al, VENDOR_3COM |
| je ep_reset_card |
| |
| mov eax, [eth_bmem] |
| mov [eth_rmem], eax |
| |
| ep_reset_card: |
| ; Reset the card |
| call rtl8029_reset |
| |
| ; Indicate that we have successfully reset the card |
| mov eax, [pci_data] |
| mov [eth_status], eax |
| |
| rtl8029_exit: |
| ret |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; rtl8029_poll |
| ; |
| ; Description |
| ; Polls the ethernet card for a received packet |
| ; Received data, if any, ends up in Ether_buffer |
| ; |
| ;*************************************************************************** |
| rtl8029_poll: |
| mov eax, Ether_buffer |
| mov [eth_rx_data_ptr], eax |
| |
| mov bx, [eth_nic_base] |
| |
| mov dx, bx |
| add dx, D8390_P0_RSR |
| in al, dx |
| |
| and al, D8390_RSTAT_PRX |
| cmp al, D8390_RSTAT_PRX |
| jne nsp_exit |
| |
| mov dx, bx |
| add dx, D8390_P0_BOUND |
| in al, dx |
| inc al |
| |
| cmp al, [eth_memsize] |
| jb nsp_001 |
| |
| mov al, [eth_rx_start] |
| |
| nsp_001: |
| mov ch, al |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS1 |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P1_CURR |
| in al, dx ; get current page |
| mov cl, al |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS0 |
| out dx, al |
| |
| cmp cl, [eth_memsize] |
| jb nsp_002 |
| |
| mov cl, [eth_rx_start] |
| |
| nsp_002: |
| cmp cl, ch |
| je nsp_exit |
| |
| xor ax, ax |
| mov ah, ch |
| |
| mov [pktoff], ax |
| |
| mov al, [eth_flags] |
| and al, FLAG_PIO |
| cmp al, FLAG_PIO |
| jne nsp_003 |
| |
| movzx ebx, word [pktoff] |
| mov edi, pkthdr |
| mov ecx, 4 |
| call eth_pio_read |
| jmp nsp_004 |
| |
| nsp_003: |
| mov edi, [eth_rmem] |
| movzx eax, word [pktoff] |
| add edi, eax |
| mov eax, [edi] |
| mov [pkthdr], eax |
| |
| nsp_004: |
| mov ax, [pktoff] |
| add ax, 4 |
| mov [pktoff], ax |
| |
| mov ax, [pkthdr + 2] |
| sub ax, 4 |
| |
| mov [eth_tmp_len], ax |
| |
| cmp ax, ETH_ZLEN |
| jb nsp_exit |
| |
| cmp ax, ETH_FRAME_LEN |
| ja nsp_exit |
| |
| mov al, [pkthdr] |
| and al, D8390_RSTAT_PRX |
| cmp al, D8390_RSTAT_PRX |
| jne nsp_exit |
| |
| ; Right, we can now get the data |
| |
| mov ax, [eth_tmp_len] |
| mov [eth_rx_data_len], ax |
| |
| xor ebx, ebx |
| mov bh, [eth_memsize] |
| sub bx, [pktoff] |
| |
| cmp [eth_tmp_len], bx |
| jbe nsp_005 |
| |
| mov al, [eth_flags] |
| and al, FLAG_PIO |
| cmp al, FLAG_PIO |
| jne nsp_006 |
| |
| push ebx |
| mov ecx, ebx |
| xor ebx, ebx |
| mov bx, [pktoff] |
| mov edi, [eth_rx_data_ptr] |
| call eth_pio_read |
| pop ebx |
| jmp nsp_007 |
| |
| nsp_006: |
| ; Not implemented, as we are using PIO mode on this card |
| |
| nsp_007: |
| xor ax, ax |
| mov ah, [eth_rx_start] |
| mov [pktoff], ax |
| |
| mov eax, [eth_rx_data_ptr] |
| add eax, ebx |
| mov [eth_rx_data_ptr], eax |
| |
| mov ax, [eth_tmp_len] |
| sub ax, bx |
| mov [eth_tmp_len], ax |
| |
| nsp_005: |
| mov al, [eth_flags] |
| and al, FLAG_PIO |
| cmp al, FLAG_PIO |
| jne nsp_008 |
| |
| xor ebx, ebx |
| mov bx, [pktoff] |
| xor ecx, ecx |
| mov cx, [eth_tmp_len] |
| mov edi, [eth_rx_data_ptr] |
| call eth_pio_read |
| jmp nsp_009 |
| |
| nsp_008: |
| ; Not implemented, as we are using PIO mode on this card |
| |
| nsp_009: |
| mov al, [pkthdr+1] |
| cmp al, [eth_rx_start] |
| jne nsp_010 |
| |
| mov al, [eth_memsize] |
| |
| nsp_010: |
| mov dx, [eth_nic_base] |
| add dx, D8390_P0_BOUND |
| dec al |
| out dx, al |
| |
| nsp_exit: |
| ret |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; rtl8029_transmit |
| ; |
| ; Description |
| ; Transmits a packet of data via the ethernet card |
| ; Pointer to 48 bit destination address in edi |
| ; Type of packet in bx |
| ; size of packet in ecx |
| ; pointer to packet data in esi |
| ; |
| ;*************************************************************************** |
| rtl8029_transmit: |
| mov [eth_type], bx |
| |
| pusha |
| |
| mov esi, edi |
| xor bx, bx |
| mov bh, [eth_tx_start] |
| mov ecx, ETH_ALEN |
| call eth_pio_write |
| |
| mov esi, node_addr |
| xor bx, bx |
| mov bh, [eth_tx_start] |
| add bx, ETH_ALEN |
| mov ecx, ETH_ALEN |
| call eth_pio_write |
| |
| mov esi, eth_type |
| xor bx, bx |
| mov bh, [eth_tx_start] |
| add bx, ETH_ALEN |
| add bx, ETH_ALEN |
| mov ecx, 2 |
| call eth_pio_write |
| |
| popa |
| |
| xor bx, bx |
| mov bh, [eth_tx_start] |
| add bx, ETH_HLEN |
| push ecx |
| call eth_pio_write |
| pop ecx |
| |
| add ecx, ETH_HLEN |
| cmp ecx, ETH_ZLEN |
| jae nst_001 |
| |
| mov ecx, ETH_ZLEN |
| |
| nst_001: |
| push ecx |
| |
| mov bx, [eth_nic_base] |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS0_RD2_STA |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_TPSR |
| mov al, [eth_tx_start] |
| out dx, al |
| |
| pop ecx |
| |
| mov dx, bx |
| add dx, D8390_P0_TBCR0 |
| mov al, cl |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_TBCR1 |
| mov al, ch |
| out dx, al |
| |
| mov dx, bx |
| add dx, D8390_P0_COMMAND |
| mov al, D8390_COMMAND_PS0_TXP_RD2_STA |
| out dx, al |
| |
| ret |