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Rev 414 Rev 416
Line 123... Line 123...
123 
   .rate         dd ?
 123 
   .rate         dd ?
124 
   .mode         dd ?
 124 
   .mode         dd ?
125 
   .state        dd ?
 125 
   .state        dd ?
126 
 
 126 
 
Line -... Line 127...
- 
 
 127 
   .rcvr_buff    dd ?
127 
   .rcvr_rp      dd ?
 128 
   .rcvr_rp      dd ?
128 
   .rcvr_wp      dd ?
 129 
   .rcvr_wp      dd ?
- 
 
 130 
   .rcvr_count   dd ?
129 
   .rcvr_cnt     dd ?
 131 
   .rcvr_top     dd ?
Line 130... Line 132...
130 
 
 132 
 
131 
   .xmit_buff    dd ?
 133 
   .xmit_buff    dd ?
132 
   .xmit_rp      dd ?
 134 
   .xmit_rp      dd ?
133 
   .xmit_wp      dd ?
 135 
   .xmit_wp      dd ?
Line 138... Line 140...
138 
virtual at 0
 140 
virtual at 0
139 
  UART UART
 141 
  UART UART
140 
end virtual
 142 
end virtual
141 
 
 143 
 
Line 142... Line 144...
142 
UART_SIZE     equ 16*4
 144 
UART_SIZE     equ 18*4
Line 143... Line 145...
143 
 
 145 
 
144 
struc CONNECTION
 146 
struc CONNECTION
145 
{
 147 
{
146 
   .magic       dd ?   ;'CNCT'
 148 
   .magic       dd ?   ;'CNCT'
Line 176... Line 178...
176 
 
 178 
 
Line 177... Line 179...
177 
           mov eax, [com1]
 179 
           mov eax, [com1]
178 
           mov [eax+UART.base], COM_1_BASE
 180 
           mov [eax+UART.base], COM_1_BASE
Line 179... Line 181...
179 
 
 181 
 
Line 180... Line 182...
180 
           stdcall alloc_kernel_space, 16384
 182 
           stdcall alloc_kernel_space, 32768
181 
 
 183 
 
- 
 
 184 
           mov edi, [com1]
- 
 
 185 
           mov edx, eax
- 
 
 186 
 
- 
 
 187 
           mov [edi+UART.rcvr_buff], eax
- 
 
 188 
           add eax, 8192
182 
           mov edi, [com1]
 189 
           mov [edi+UART.rcvr_top], eax
183 
           mov edx, eax
 190 
           add eax, 8192
184 
           mov [edi+UART.xmit_buff], eax
 191 
           mov [edi+UART.xmit_buff], eax
Line 185... Line 192...
185 
           add eax, 8192
 192 
           add eax, 8192
Line 201... Line 208...
201 
           or eax, PG_SW
 208 
           or eax, PG_SW
202 
           mov [page_tabs+edx*4+4], eax
 209 
           mov [page_tabs+edx*4+4], eax
203 
           mov [page_tabs+edx*4+12], eax
 210 
           mov [page_tabs+edx*4+12], eax
Line -... Line 211...
- 
 
 211 
 
- 
 
 212 
           call alloc_page
- 
 
 213 
           test eax, eax
- 
 
 214 
           jz .fail
- 
 
 215 
 
- 
 
 216 
           or eax, PG_SW
- 
 
 217 
           mov [page_tabs+edx*4+16], eax
- 
 
 218 
           mov [page_tabs+edx*4+24], eax
- 
 
 219 
 
- 
 
 220 
           call alloc_page
- 
 
 221 
           test eax, eax
- 
 
 222 
           jz .fail
- 
 
 223 
 
- 
 
 224 
           or eax, PG_SW
- 
 
 225 
           mov [page_tabs+edx*4+20], eax
- 
 
 226 
           mov [page_tabs+edx*4+28], eax
204 
 
 227 
 
205 
           mov eax, [edi+UART.xmit_buff]
 228 
           mov eax, [edi+UART.rcvr_buff]
206 
           invlpg [eax]
 229 
           invlpg [eax]
207 
           invlpg [eax+0x1000]
 230 
           invlpg [eax+0x1000]
208 
           invlpg [eax+0x2000]
 231 
           invlpg [eax+0x2000]
- 
 
 232 
           invlpg [eax+0x3000]
- 
 
 233 
           invlpg [eax+0x4000]
- 
 
 234 
           invlpg [eax+0x5000]
- 
 
 235 
           invlpg [eax+0x6000]
Line 209... Line 236...
209 
           invlpg [eax+0x3000]
 236 
           invlpg [eax+0x7000]
210 
 
 237 
 
Line 211... Line 238...
211 
           mov eax, edi
 238 
           mov eax, edi
Line 372... Line 399...
372 
           add edx, LSR_REG
 399 
           add edx, LSR_REG
373 
           in al, dx
 400 
           in al, dx
374 
           jmp .clear_IIR
 401 
           jmp .clear_IIR
375 
.done:
 402 
.done:
376 
           mov edi, [esi+UART.xmit_buff]
 403 
           mov edi, [esi+UART.rcvr_buff]
377 
           mov ecx, 8192/4
 404 
           mov ecx, 8192/4
378 
           xor eax, eax
 405 
           xor eax, eax
379 
 
 406 
 
Line 380... Line 407...
380 
           mov [esi+UART.xmit_rp], edi
 407 
           mov [esi+UART.rcvr_rp], edi
381 
           mov [esi+UART.xmit_wp], edi
 408 
           mov [esi+UART.rcvr_wp], edi
382 
           mov [esi+UART.xmit_count], eax
 409 
           mov [esi+UART.rcvr_count], eax
383 
           mov [esi+UART.xmit_free], 8192
 - 
 
Line 384... Line 410...
384 
 
 410 
 
385 
           cld
 411 
           cld
Line -... Line 412...
- 
 
 412 
           rep stosd
- 
 
 413 
 
Line 386... Line 414...
386 
           rep stosd
 414 
           mov edi, [esi+UART.xmit_buff]
387 
 
 415 
           mov ecx, 8192/4
388 
 
 416 
 
- 
 
 417 
           mov [esi+UART.xmit_rp], edi
Line 389... Line 418...
389 
;           mov [esi+UART.rcvr_rp], eax
 418 
           mov [esi+UART.xmit_wp], edi
- 
 
 419 
           mov [esi+UART.xmit_count], eax
390 
;           mov [esi+UART.rcvr_wp], eax
 420 
           mov [esi+UART.xmit_free], 8192
391 
;           mov [esi+UART.rcvr_cnt], eax
 421 
 
392 
 
 422 
           rep stosd
Line 393... Line 423...
393 
           ret
 423 
           ret               ;eax= 0
Line 683... Line 713...
683 
           test eax, eax
 713 
           test eax, eax
684 
           jz .fail
 714 
           jz .fail
685 
 
 715 
 
Line 686... Line 716...
686 
           mov ebx, [esi+8]    ;dst size
 716 
           mov ebx, [esi+8]    ;dst size
687 
           mov ecx, [eax+UART.rcvr_cnt]
 717 
           mov ecx, [eax+UART.rcvr_count]
688 
           cmp ecx, ebx
 718 
           cmp ecx, ebx
689 
           jbe @F
 719 
           jbe @F
690 
           mov ecx, ebx
 720 
           mov ecx, ebx
691 
@@:
 721 
@@:
692 
           mov [edi], ecx      ;bytes read
 722 
           mov [edi], ecx      ;bytes read
693 
           test ecx, ecx
 723 
           test ecx, ecx
694 
           jz .done
 724 
           jz .done
Line 695... Line 725...
695 
 
 725 
 
Line 696... Line -...
696 
           sub [eax+UART.rcvr_cnt], ecx
 - 
 
697 
 
 726 
           push ecx
698 
           push eax
 - 
 
699 
           mov edi, [esi+4]    ;dst
 727 
 
700 
       ;    lea esi, [eax+RCVR_OFFSET]
 728 
           mov edi, [esi+4]    ;dst
701 
           mov ebx, [eax+UART.rcvr_rp]
 - 
 
702 
           cld
 - 
 
703 
@@:
 - 
 
704 
           and ebx, 127
 729 
           mov esi, [eax+UART.rcvr_rp]
705 
           mov al, [esi+ebx]
 - 
 
706 
           stosb
 730 
           cld
707 
           inc ebx
 - 
 
Line -... Line 731...
- 
 
 731 
           rep movsb
708 
           dec ecx
 732 
           pop ecx
- 
 
 733 
 
- 
 
 734 
           cmp esi, [eax+UART.rcvr_top]
709 
           jnz @B
 735 
           jb @F
- 
 
 736 
           sub esi, 8192
710 
 
 737 
@@:
711 
           pop eax
 738 
           mov [eax+UART.rcvr_rp], esi
712 
           mov [eax+UART.rcvr_rp], ebx
 739 
           sub [eax+UART.rcvr_count], ecx
713 
.done:
 740 
.done:
714 
           xor eax, eax
 741 
           xor eax, eax
715 
           rep
 742 
           ret
Line 716... Line 743...
716 
.fail:
 743 
.fail:
Line 830... Line 857...
830 
           ret
 857 
           ret
831 
 
 858 
 
Line 832... Line 859...
832 
align 4
 859 
align 4
833 
isr_recieve:
 860 
isr_recieve:
- 
 
 861 
           mov esi, [ebx+UART.base]
- 
 
 862 
           add esi, LSR_REG
- 
 
 863 
           mov edi, [ebx+UART.rcvr_wp]
- 
 
 864 
           xor ecx, ecx
- 
 
 865 
           cld
- 
 
 866 
.read:
- 
 
 867 
           mov edx, esi
- 
 
 868 
           in al, dx
- 
 
 869 
           test eax, LSR_DR
- 
 
 870 
           jz .done
- 
 
 871 
 
834 
           mov edx, [ebx+UART.base]
 872 
           mov edx, [ebx+UART.base]
835 
           in al, dx
 873 
           in al, dx
- 
 
 874 
           stosb
- 
 
 875 
           inc ecx
- 
 
 876 
           jmp .read
- 
 
 877 
.done:
- 
 
 878 
           cmp edi, [ebx+UART.rcvr_top]
- 
 
 879 
           jb @F
- 
 
 880 
           sub edi, 8192
- 
 
 881 
@@:
- 
 
 882 
           mov [ebx+UART.rcvr_wp], edi
- 
 
 883 
           add [ebx+UART.rcvr_count], ecx
836 
           ret
 884 
           ret
Line 837... Line 885...
837 
 
 885 
 
838 
align 4
 886 
align 4
839 
isr_modem:
 887 
isr_modem: