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Rev 7809 Rev 9147
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                                 ;;
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;;                                                                 ;;
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;; Copyright (C) KolibriOS team 2004-2018. All rights reserved.    ;;
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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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;; Distributed under terms of the GNU General Public License       ;;
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;;                                                                 ;;
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;;                                                                 ;;
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;;  i8254x driver for KolibriOS                                    ;;
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;;  i8254x driver for KolibriOS                                    ;;
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;;                                                                 ;;
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;;                                                                 ;;
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;;  based on i8254x.asm from baremetal os                          ;;
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;;  based on i8254x.asm from baremetal os                          ;;
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;;                                         ;;
 747 
;;                                         ;;
748 
;; In:  ebx = pointer to device structure  ;;
 748 
;; In:  ebx = pointer to device structure  ;;
749 
;; Out: eax = 0 on success                 ;;
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;; Out: eax = 0 on success                 ;;
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;;                                         ;;
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;;                                         ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
752 
 
 752 
align 16
753 
proc transmit stdcall bufferptr
 753 
proc transmit stdcall bufferptr
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 754 
 
755 
        pushf
 - 
 
Line 756... Line 755...
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        cli
 755 
        spin_lock_irqsave
757 
 
 756 
 
758 
        mov     esi, [bufferptr]
 757 
        mov     esi, [bufferptr]
759 
        DEBUGF  1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length]
 758 
        DEBUGF  1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length]
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        add     dword[ebx + device.bytes_tx], eax
 798 
        add     dword[ebx + device.bytes_tx], eax
800 
        adc     dword[ebx + device.bytes_tx + 4], 0
 799 
        adc     dword[ebx + device.bytes_tx + 4], 0
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 800 
 
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        call    clean_tx
 801 
        call    clean_tx
803 
 
 802 
 
804 
        popf
 803 
        spin_unlock_irqrestore
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        xor     eax, eax
 804 
        xor     eax, eax
806 
        ret
 805 
        ret
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 806 
 
808 
  .fail:
 807 
  .fail:
809 
        call    clean_tx
 808 
        call    clean_tx
810 
 
 809 
 
811 
        DEBUGF  2,"Send failed\n"
 810 
        DEBUGF  2,"Send failed\n"
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        invoke  NetFree, [bufferptr]
 811 
        invoke  NetFree, [bufferptr]
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;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;
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;;                   ;;
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;;                   ;;
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;; Interrupt handler ;;
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;; Interrupt handler ;;
823 
;;                   ;;
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;;                   ;;
824 
;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;
825 
 
 - 
 
826 
align 4
 824 
align 16
827 
int_handler:
 825 
int_handler:
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828 
 
 826 
 
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829 
        push    ebx esi edi
 827 
        push    ebx esi edi
830 
 
 828 
 
- 
 
 829 
        mov     ebx, [esp+4*4]
831 
        DEBUGF  1,"INT\n"
 830 
        DEBUGF  1,"INT for 0x%x\n", ebx
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832 
;-------------------------------------------
 - 
 
833 
; Find pointer of device wich made IRQ occur
 - 
 
834 
 
 - 
 
835 
        mov     ecx, [devices]
 - 
 
836 
        test    ecx, ecx
 - 
 
837 
        jz      .nothing
 - 
 
838 
        mov     esi, device_list
 831 
 
839 
  .nextdevice:
 832 
; TODO? if we are paranoid, we can check that the value from ebx is present in the current device_list
- 
 
 833 
 
- 
 
 834 
        mov     edi, [ebx + device.mmio_addr]
840 
        mov     ebx, [esi]
 835 
        mov     eax, [edi + REG_ICR]
841 
        mov     edi, [ebx + device.mmio_addr]
 836 
        cmp     eax, 0xffffffff         ; if so, hardware is no longer present
842 
        mov     eax, [edi + REG_ICR]
 - 
 
843 
        test    eax, eax
 - 
 
844 
        jnz     .got_it
 - 
 
845 
  .continue:
 - 
 
846 
        add     esi, 4
 - 
 
847 
        dec     ecx
 - 
 
848 
        jnz     .nextdevice
 - 
 
849 
  .nothing:
 - 
 
850 
        pop     edi esi ebx
 - 
 
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851 
        xor     eax, eax
 - 
 
852 
 
 837 
        je      .nothing                ;
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853 
        ret
 838 
        test    eax, eax
854 
 
 839 
        jz      .nothing
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855 
  .got_it:
 840 
 
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941 
        DEBUGF  1,"Transmit done\n"
 926 
        DEBUGF  1,"Transmit done\n"
Line 942... Line 927...
942 
 
 927 
 
Line 943... Line 928...
943 
;        call    clean_tx
 928 
;        call    clean_tx
- 
 
 929 
 
944 
 
 930 
  .no_tx:
945 
  .no_tx:
 931 
 
946 
        pop     edi esi ebx
 932 
        pop     edi esi ebx
947 
        xor     eax, eax
 933 
        xor     eax, eax
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- 
 
 934 
        inc     eax
- 
 
 935 
        ret
- 
 
 936 
 
- 
 
 937 
  .nothing:
- 
 
 938 
        pop     edi esi ebx
- 
 
 939 
        xor     eax, eax
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948 
        inc     eax
 940 
 
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949 
        ret
 941 
        ret