Rev 5363 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 5363 | Rev 5522 | ||
|---|---|---|---|
| Line 663... | Line 663... | ||
| 663 | 663 | ||
| 664 | 664 | ||
| 665 | ;*************************************************************************** |
665 | ;*************************************************************************** |
| 666 | ; Function |
666 | ; Function |
| 667 | ; transmit |
667 | ; transmit |
| Line 668... | Line 668... | ||
| 668 | ; buffer in [esp+4], size in [esp+8], pointer to device struct in ebx |
668 | ; buffer in [esp+4], pointer to device struct in ebx |
| Line 669... | Line 669... | ||
| 669 | ;*************************************************************************** |
669 | ;*************************************************************************** |
| 670 | 670 | ||
| Line 671... | Line 671... | ||
| 671 | proc transmit stdcall buffer_ptr, buffer_size |
671 | proc transmit stdcall buffer_ptr |
| 672 | 672 | ||
| 673 | pushf |
673 | pushf |
| - | 674 | cli |
|
| 674 | cli |
675 | |
| 675 | 676 | mov esi, [buffer_ptr] |
|
| Line 676... | Line 677... | ||
| 676 | mov esi, [buffer_ptr] |
677 | mov ecx, [esi + NET_BUFF.length] |
| 677 | mov ecx, [buffer_size] |
678 | DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", esi, ecx |
| 678 | DEBUGF 1, "Transmitting packet, buffer:%x, size:%u\n", esi, ecx |
679 | lea eax, [esi + NET_BUFF.data] |
| 679 | DEBUGF 1, "To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\ |
680 | DEBUGF 1, "To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\ |
| Line 680... | Line 681... | ||
| 680 | [esi+0]:2,[esi+1]:2,[esi+2]:2,[esi+3]:2,[esi+4]:2,[esi+5]:2,[esi+6]:2,[esi+7]:2,[esi+8]:2,[esi+9]:2,[esi+10]:2,[esi+11]:2,[esi+13]:2,[esi+12]:2 |
681 | [esi+0]:2,[esi+1]:2,[esi+2]:2,[esi+3]:2,[esi+4]:2,[esi+5]:2,[esi+6]:2,[esi+7]:2,[esi+8]:2,[esi+9]:2,[esi+10]:2,[esi+11]:2,[esi+13]:2,[esi+12]:2 |
| 681 | 682 | ||
| - | 683 | cmp ecx, ETH_FRAME_LEN |
|
| 682 | cmp ecx, ETH_FRAME_LEN |
684 | ja .err ; packet is too long |
| 683 | ja .err ; packet is too long |
685 | cmp ecx, ETH_ZLEN |
| 684 | cmp ecx, ETH_ZLEN |
686 | jb .err ; packet is too short |
| Line 685... | Line 687... | ||
| 685 | jb .err ; packet is too short |
687 | |
| 686 | 688 | movzx edi, [ebx + device.tx_start] |
|
| 687 | movzx edi, [ebx + device.tx_start] |
689 | shl edi, 8 |
| 688 | shl edi, 8 |
690 | add esi, [esi + NET_BUFF.offset] |
| Line 712... | Line 714... | ||
| 712 | out dx, al |
714 | out dx, al |
| Line 713... | Line 715... | ||
| 713 | 715 | ||
| Line 714... | Line 716... | ||
| 714 | DEBUGF 1, "Packet Sent!\n" |
716 | DEBUGF 1, "Packet Sent!\n" |
| 715 | - | ||
| 716 | inc [ebx + device.packets_tx] |
717 | |
| 717 | mov eax, [buffer_size] |
718 | inc [ebx + device.packets_tx] |
| Line 718... | Line 719... | ||
| 718 | add dword[ebx + device.bytes_tx], eax |
719 | add dword[ebx + device.bytes_tx], ecx |
| 719 | adc dword[ebx + device.bytes_tx + 4], 0 |
720 | adc dword[ebx + device.bytes_tx + 4], 0 |
| 720 | 721 | ||
| 721 | invoke KernelFree, [buffer_ptr] |
722 | invoke NetFree, [buffer_ptr] |
| Line 722... | Line 723... | ||
| 722 | popf |
723 | popf |
| 723 | xor eax, eax |
724 | xor eax, eax |
| 724 | ret |
725 | ret |
| 725 | 726 | ||
| 726 | .err: |
727 | .err: |
| 727 | DEBUGF 2, "Transmit error!\n" |
728 | DEBUGF 2, "Transmit error!\n" |
| Line 728... | Line 729... | ||
| 728 | invoke KernelFree, [buffer_ptr] |
729 | invoke NetFree, [buffer_ptr] |
| Line 783... | Line 784... | ||
| 783 | jz .no_rx |
784 | jz .no_rx |
| 784 | test [ebx + device.flags], FLAG_PIO |
785 | test [ebx + device.flags], FLAG_PIO |
| 785 | jz .no_rx ; FIXME: Only PIO mode supported for now |
786 | jz .no_rx ; FIXME: Only PIO mode supported for now |
| Line 786... | Line 787... | ||
| 786 | 787 | ||
| 787 | ; allocate a buffer |
788 | ; allocate a buffer |
| 788 | invoke KernelAlloc, ETH_FRAME_LEN |
789 | invoke NetAlloc, ETH_FRAME_LEN+NET_BUFF.data |
| 789 | test eax, eax |
790 | test eax, eax |
| Line 790... | Line 791... | ||
| 790 | jz .rx_fail_2 |
791 | jz .rx_fail_2 |
| 791 | 792 | ||
| 792 | ; Push return address and packet ptr to stack |
- | |
| 793 | pushd .no_rx |
793 | ; Push return address and packet ptr to stack |
| - | 794 | pushd .no_rx |
|
| - | 795 | push eax |
|
| Line 794... | Line 796... | ||
| 794 | pushd 0 ; Reserve some space for the packet size |
796 | mov [eax + NET_BUFF.device], ebx |
| 795 | push eax |
797 | mov [eax + NET_BUFF.offset], NET_BUFF.data |
| 796 | 798 | ||
| 797 | ; read offset for current packet from device |
799 | ; read offset for current packet from device |
| Line 824... | Line 826... | ||
| 824 | cmp cl, ch |
826 | cmp cl, ch |
| 825 | je .rx_fail |
827 | je .rx_fail |
| 826 | movzx esi, ch ; we are using 256 byte pages |
828 | movzx esi, ch ; we are using 256 byte pages |
| 827 | shl esi, 8 ; esi now holds the offset for current packet |
829 | shl esi, 8 ; esi now holds the offset for current packet |
| Line 828... | Line 830... | ||
| 828 | 830 | ||
| 829 | ; Get packet header in ecx |
831 | ; Write packet header to frame header size field |
| 830 | push ecx ; reserve 4 bytes on stack to put packet header in |
832 | push ecx |
| 831 | mov edi, esp |
833 | mov edi, esp |
| 832 | mov cx, 4 |
834 | mov cx, 4 |
| 833 | call PIO_read |
835 | call PIO_read |
| Line 838... | Line 840... | ||
| 838 | jz .rx_fail_3 |
840 | jz .rx_fail_3 |
| Line 839... | Line 841... | ||
| 839 | 841 | ||
| 840 | ; calculate packet length in ecx |
842 | ; calculate packet length in ecx |
| 841 | shr ecx, 16 |
843 | shr ecx, 16 |
| 842 | sub ecx, 4 ; CRC doesnt count as data byte |
844 | sub ecx, 4 ; CRC doesnt count as data byte |
| - | 845 | mov edi, [esp+4] |
|
| Line 843... | Line 846... | ||
| 843 | mov [esp + 8], ecx |
846 | mov [edi + NET_BUFF.length], ecx |
| 844 | 847 | ||
| 845 | ; check if packet size is ok |
848 | ; check if packet size is ok |
| 846 | cmp ecx, ETH_ZLEN |
849 | cmp ecx, ETH_ZLEN |
| Line 854... | Line 857... | ||
| 854 | adc dword[ebx + device.bytes_rx + 4], 0 |
857 | adc dword[ebx + device.bytes_rx + 4], 0 |
| 855 | inc [ebx + device.packets_rx] |
858 | inc [ebx + device.packets_rx] |
| Line 856... | Line 859... | ||
| 856 | 859 | ||
| 857 | ; update read and write pointers |
860 | ; update read and write pointers |
| 858 | add esi, 4 |
861 | add esi, 4 |
| Line 859... | Line 862... | ||
| 859 | mov edi, [esp + 4] |
862 | add edi, NET_BUFF.data |
| 860 | 863 | ||
| 861 | ; now check if we can read all data at once (if we cross the end boundary, we need to wrap back to the beginning) |
864 | ; now check if we can read all data at once (if we cross the end boundary, we need to wrap back to the beginning) |
| 862 | xor eax, eax |
865 | xor eax, eax |
| Line 892... | Line 895... | ||
| 892 | set_io [ebx + device.io_addr], P0_BOUND |
895 | set_io [ebx + device.io_addr], P0_BOUND |
| 893 | dec al |
896 | dec al |
| 894 | out dx, al |
897 | out dx, al |
| Line 895... | Line 898... | ||
| 895 | 898 | ||
| 896 | ; now send the data to the kernel |
899 | ; now send the data to the kernel |
| Line 897... | Line 900... | ||
| 897 | jmp [Eth_input] |
900 | jmp [EthInput] |
| 898 | 901 | ||
| 899 | .rx_fail_3: |
902 | .rx_fail_3: |
| 900 | add esp, 4 |
903 | add esp, 4 |