Rev 5852 | Rev 6842 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
5363 | yogev_ezra | 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
7 | |||
8 | $Revision: 6015 $ |
||
9 | |||
5569 | Pathoswith | 10 | ; HDD driver |
2288 | clevermous | 11 | |
3742 | clevermous | 12 | struct HD_DATA |
5852 | pathoswith | 13 | hdbase dw ? |
14 | hdid dw ? |
||
15 | hdpos dw ? |
||
16 | hd48 dw ? |
||
3742 | clevermous | 17 | ends |
5569 | Pathoswith | 18 | ;----------------------------------------------------------------- |
3742 | clevermous | 19 | iglobal |
2288 | clevermous | 20 | align 4 |
3742 | clevermous | 21 | ide_callbacks: |
5852 | pathoswith | 22 | dd ide_callbacks.end - ide_callbacks |
23 | dd 0 ; no close function |
||
24 | dd 0 ; no closemedia function |
||
25 | dd ide_querymedia |
||
26 | dd ide_read |
||
27 | dd ide_write |
||
28 | dd 0 ; no flush function |
||
29 | dd 0 ; use default cache size |
||
3742 | clevermous | 30 | .end: |
2288 | clevermous | 31 | |
5852 | pathoswith | 32 | hd0_data HD_DATA ?, 0, 1, 0 |
33 | hd1_data HD_DATA ?, 16, 2, 0 |
||
34 | hd2_data HD_DATA ?, 0, 3, 0 |
||
35 | hd3_data HD_DATA ?, 16, 4, 0 |
||
36 | hd4_data HD_DATA ?, 0, 5, 0 |
||
37 | hd5_data HD_DATA ?, 16, 6, 0 |
||
38 | hd6_data HD_DATA ?, 0, 7, 0 |
||
39 | hd7_data HD_DATA ?, 16, 8, 0 |
||
40 | hd8_data HD_DATA ?, 0, 9, 0 |
||
41 | hd9_data HD_DATA ?, 16, 10, 0 |
||
42 | hd10_data HD_DATA ?, 0, 11, 0 |
||
43 | hd11_data HD_DATA ?, 16, 12, 0 |
||
4273 | clevermous | 44 | |
4700 | mario79 | 45 | ide_mutex_table: |
5852 | pathoswith | 46 | dd ide_channel1_mutex |
47 | dd ide_channel2_mutex |
||
48 | dd ide_channel3_mutex |
||
49 | dd ide_channel4_mutex |
||
50 | dd ide_channel5_mutex |
||
51 | dd ide_channel6_mutex |
||
3742 | clevermous | 52 | endg |
5569 | Pathoswith | 53 | ;----------------------------------------------------------------- |
3742 | clevermous | 54 | uglobal |
55 | ide_mutex MUTEX |
||
56 | ide_channel1_mutex MUTEX |
||
57 | ide_channel2_mutex MUTEX |
||
4700 | mario79 | 58 | ide_channel3_mutex MUTEX |
59 | ide_channel4_mutex MUTEX |
||
60 | ide_channel5_mutex MUTEX |
||
61 | ide_channel6_mutex MUTEX |
||
5569 | Pathoswith | 62 | blockSize: |
63 | rb 4 |
||
64 | sector: |
||
65 | rb 6 |
||
66 | allow_dma_access db ? |
||
67 | IDE_common_irq_param db ? |
||
68 | eventPointer dd ? |
||
69 | eventID dd ? |
||
3742 | clevermous | 70 | endg |
5569 | Pathoswith | 71 | ;----------------------------------------------------------------- |
5570 | clevermous | 72 | ide_read: |
73 | mov al, 25h ; READ DMA EXT |
||
74 | jmp ide_read_write |
||
75 | |||
76 | ide_write: |
||
77 | mov al, 35h ; WRITE DMA EXT |
||
78 | |||
79 | proc ide_read_write stdcall uses esi edi ebx, \ |
||
3742 | clevermous | 80 | hd_data, buffer, startsector:qword, numsectors |
81 | ; hd_data = pointer to hd*_data |
||
5570 | clevermous | 82 | ; buffer = pointer to buffer with/for data |
3742 | clevermous | 83 | ; startsector = 64-bit start sector |
84 | ; numsectors = pointer to number of sectors on input, |
||
5570 | clevermous | 85 | ; must be filled with number of sectors really read/written |
3742 | clevermous | 86 | locals |
87 | sectors_todo dd ? |
||
88 | channel_lock dd ? |
||
89 | endl |
||
5852 | pathoswith | 90 | mov bl, al |
5569 | Pathoswith | 91 | ; get number of requested sectors and say that no sectors were read yet |
3742 | clevermous | 92 | mov ecx, [numsectors] |
93 | mov eax, [ecx] |
||
94 | mov dword [ecx], 0 |
||
95 | mov [sectors_todo], eax |
||
5569 | Pathoswith | 96 | ; acquire the global lock |
3742 | clevermous | 97 | mov ecx, ide_mutex |
98 | call mutex_lock |
||
4700 | mario79 | 99 | mov ecx, [hd_data] |
5852 | pathoswith | 100 | movzx ecx, [ecx+HD_DATA.hdpos] |
4700 | mario79 | 101 | dec ecx |
102 | shr ecx, 1 |
||
103 | shl ecx, 2 |
||
104 | mov ecx, [ecx + ide_mutex_table] |
||
3742 | clevermous | 105 | mov [channel_lock], ecx |
106 | call mutex_lock |
||
5569 | Pathoswith | 107 | ; prepare worker procedures variables |
5852 | pathoswith | 108 | mov esi, [buffer] |
109 | mov edi, esi |
||
3742 | clevermous | 110 | mov ecx, [hd_data] |
5852 | pathoswith | 111 | movzx eax, [ecx+HD_DATA.hdbase] |
3742 | clevermous | 112 | mov [hdbase], eax |
5852 | pathoswith | 113 | mov ax, [ecx+HD_DATA.hdid] |
3742 | clevermous | 114 | mov [hdid], eax |
115 | mov eax, dword [startsector] |
||
5569 | Pathoswith | 116 | mov [sector], eax |
5852 | pathoswith | 117 | cmp [ecx+HD_DATA.hd48], 0 |
118 | jz .LBA28 |
||
5569 | Pathoswith | 119 | mov ax, word [startsector+4] |
120 | mov [sector+4], ax |
||
5852 | pathoswith | 121 | movzx ecx, [ecx+HD_DATA.hdpos] |
122 | mov [hdpos], ecx |
||
4720 | mario79 | 123 | dec ecx |
124 | shr ecx, 2 |
||
125 | imul ecx, sizeof.IDE_DATA |
||
126 | add ecx, IDE_controller_1 |
||
127 | mov [IDE_controller_pointer], ecx |
||
128 | mov eax, [hdpos] |
||
129 | dec eax |
||
130 | and eax, 11b |
||
131 | shr eax, 1 |
||
132 | add eax, ecx |
||
133 | cmp [eax+IDE_DATA.dma_hdd_channel_1], 1 |
||
5569 | Pathoswith | 134 | jz .next |
5570 | clevermous | 135 | dec ebx ; READ/WRITE SECTOR(S) EXT |
5852 | pathoswith | 136 | ; LBA48 supports max 10000h sectors per time |
5569 | Pathoswith | 137 | ; loop until all sectors will be processed |
138 | .next: |
||
139 | mov ecx, 8000h |
||
140 | cmp ecx, [sectors_todo] |
||
141 | jbe @f |
||
142 | mov ecx, [sectors_todo] |
||
143 | @@: |
||
144 | mov [blockSize], ecx |
||
145 | push ecx |
||
146 | call IDE_transfer |
||
147 | pop ecx |
||
148 | jc .out |
||
3742 | clevermous | 149 | mov eax, [numsectors] |
150 | add [eax], ecx |
||
151 | sub [sectors_todo], ecx |
||
5569 | Pathoswith | 152 | jz .out |
153 | add [sector], ecx |
||
154 | adc word [sector+4], 0 |
||
155 | jmp .next |
||
5852 | pathoswith | 156 | .LBA28: |
157 | add eax, [sectors_todo] |
||
158 | add eax, 0xF0000000 |
||
159 | jc .out |
||
160 | sub bl, 5 ; READ/WRITE SECTOR(S) |
||
161 | ; LBA28 supports max 256 sectors per time |
||
162 | ; loop until all sectors will be processed |
||
163 | .next28: |
||
164 | mov ecx, 256 |
||
165 | cmp ecx, [sectors_todo] |
||
166 | jbe @f |
||
167 | mov ecx, [sectors_todo] |
||
168 | @@: |
||
169 | mov [blockSize], ecx |
||
170 | push ecx |
||
171 | call IDE_transfer.LBA28 |
||
172 | pop ecx |
||
173 | jc .out |
||
174 | mov eax, [numsectors] |
||
175 | add [eax], ecx |
||
176 | sub [sectors_todo], ecx |
||
177 | jz .out |
||
178 | add [sector], ecx |
||
179 | jmp .next28 |
||
5569 | Pathoswith | 180 | ; loop is done, either due to error or because everything is done |
181 | ; release the global lock and return the corresponding status |
||
182 | .out: |
||
183 | sbb eax, eax |
||
184 | push eax |
||
3742 | clevermous | 185 | mov ecx, [channel_lock] |
186 | call mutex_unlock |
||
187 | mov ecx, ide_mutex |
||
188 | call mutex_unlock |
||
5569 | Pathoswith | 189 | pop eax |
3742 | clevermous | 190 | ret |
191 | endp |
||
5569 | Pathoswith | 192 | ;----------------------------------------------------------------- |
193 | ; this is a stub |
||
3742 | clevermous | 194 | proc ide_querymedia stdcall, hd_data, mediainfo |
195 | mov eax, [mediainfo] |
||
196 | mov [eax+DISKMEDIAINFO.Flags], 0 |
||
197 | mov [eax+DISKMEDIAINFO.SectorSize], 512 |
||
198 | or dword [eax+DISKMEDIAINFO.Capacity], 0xFFFFFFFF |
||
199 | or dword [eax+DISKMEDIAINFO.Capacity+4], 0xFFFFFFFF |
||
200 | xor eax, eax |
||
201 | ret |
||
202 | endp |
||
5569 | Pathoswith | 203 | ;----------------------------------------------------------------- |
204 | ; input: esi -> buffer, bl = command, [sector], [blockSize] |
||
205 | ; output: esi -> next block in buffer |
||
206 | ; for pio read esi equal edi |
||
207 | IDE_transfer: |
||
3702 | mario79 | 208 | mov edx, [hdbase] |
5569 | Pathoswith | 209 | add edx, 6 |
3702 | mario79 | 210 | mov al, byte [hdid] |
5569 | Pathoswith | 211 | add al, 224 |
212 | out dx, al ; select the desired drive |
||
213 | call save_hd_wait_timeout |
||
214 | inc edx |
||
215 | @@: |
||
216 | call check_hd_wait_timeout |
||
217 | jc .hd_error |
||
218 | in al, dx |
||
219 | test al, 128 ; ready for command? |
||
220 | jnz @b |
||
221 | pushfd ; fill the ports |
||
2288 | clevermous | 222 | cli |
223 | mov edx, [hdbase] |
||
224 | inc edx |
||
225 | inc edx |
||
5569 | Pathoswith | 226 | mov al, [blockSize+1] |
227 | out dx, al ; Sector count (15:8) |
||
2288 | clevermous | 228 | inc edx |
5569 | Pathoswith | 229 | mov eax, [sector+3] |
230 | out dx, al ; LBA (31:24) |
||
2288 | clevermous | 231 | inc edx |
232 | shr eax, 8 |
||
5569 | Pathoswith | 233 | out dx, al ; LBA (39:32) |
2288 | clevermous | 234 | inc edx |
235 | shr eax, 8 |
||
5569 | Pathoswith | 236 | out dx, al ; LBA (47:40) |
237 | sub edx, 3 |
||
238 | mov al, [blockSize] |
||
239 | out dx, al ; Sector count (7:0) |
||
2288 | clevermous | 240 | inc edx |
5569 | Pathoswith | 241 | mov eax, [sector] |
242 | out dx, al ; LBA (7:0) |
||
2288 | clevermous | 243 | inc edx |
3702 | mario79 | 244 | shr eax, 8 |
5569 | Pathoswith | 245 | out dx, al ; LBA (15:8) |
3702 | mario79 | 246 | inc edx |
247 | shr eax, 8 |
||
5569 | Pathoswith | 248 | out dx, al ; LBA (23:16) |
3702 | mario79 | 249 | inc edx |
250 | mov al, byte [hdid] |
||
5569 | Pathoswith | 251 | add al, 224 |
252 | out dx, al |
||
253 | test bl, 1 |
||
254 | jz .PIO |
||
255 | ; DMA |
||
256 | mov dword [esp], 0x1000 |
||
257 | call kernel_alloc |
||
258 | mov edi, eax |
||
259 | push eax |
||
260 | shl dword [blockSize], 9 |
||
261 | mov eax, esi |
||
262 | add eax, [blockSize] |
||
263 | push eax |
||
264 | ; check buffer pages physical addresses and fill the scatter-gather list |
||
265 | ; buffer may be not aligned and may have size not divisible by page size |
||
266 | ; [edi] = block physical address, [edi+4] = block size in bytes |
||
267 | ; block addresses can not cross 10000h borders |
||
268 | mov ecx, esi |
||
269 | and ecx, 0xFFF |
||
270 | jz .aligned |
||
271 | mov eax, esi |
||
272 | call get_pg_addr |
||
273 | add eax, ecx |
||
274 | neg ecx |
||
275 | add ecx, 0x1000 |
||
276 | mov [edi], eax |
||
277 | cmp ecx, [blockSize] |
||
278 | jnc .end |
||
279 | mov [edi+4], ecx |
||
280 | add esi, 0x1000 |
||
281 | add edi, 8 |
||
282 | sub [blockSize], ecx |
||
283 | .aligned: |
||
284 | mov eax, esi |
||
285 | call get_pg_addr |
||
286 | mov ecx, eax |
||
287 | mov [edi], eax |
||
288 | and ecx, 0xFFFF |
||
289 | neg ecx |
||
290 | add ecx, 0x10000 |
||
291 | cmp [blockSize], ecx |
||
292 | jnc @f |
||
293 | mov ecx, [blockSize] |
||
294 | and ecx, 0xF000 |
||
295 | jz .end |
||
296 | @@: |
||
297 | push ecx |
||
298 | @@: |
||
299 | add esi, 0x1000 |
||
300 | add eax, 0x1000 |
||
301 | sub ecx, 0x1000 |
||
302 | jz @f |
||
303 | mov edx, eax |
||
304 | mov eax, esi |
||
305 | call get_pg_addr |
||
306 | cmp eax, edx |
||
307 | jz @b |
||
308 | @@: |
||
309 | pop edx |
||
310 | sub edx, ecx |
||
311 | mov [edi+4], edx |
||
312 | add edi, 8 |
||
313 | sub [blockSize], edx |
||
314 | jnz .aligned |
||
315 | sub edi, 8 |
||
316 | jmp @f |
||
317 | .end: |
||
318 | mov ecx, [blockSize] |
||
319 | mov [edi+4], ecx |
||
320 | @@: |
||
321 | mov byte [edi+7], 80h ; list end |
||
322 | pop esi |
||
323 | pop edi |
||
324 | ; select controller Primary or Secondary |
||
325 | mov ecx, [IDE_controller_pointer] |
||
326 | mov dx, [ecx+IDE_DATA.RegsBaseAddres] |
||
327 | mov eax, [hdpos] |
||
328 | dec eax |
||
329 | test eax, 10b |
||
330 | jz @f |
||
331 | add edx, 8 |
||
332 | @@: |
||
333 | add edx, 2 ; Bus Master IDE Status register |
||
334 | mov al, 6 |
||
335 | out dx, al ; clear Error bit and Interrupt bit |
||
2288 | clevermous | 336 | |
5569 | Pathoswith | 337 | add edx, 2 ; Bus Master IDE PRD Table Address |
338 | mov eax, edi |
||
339 | call get_pg_addr |
||
340 | out dx, eax ; send scatter-gather list physical address |
||
2288 | clevermous | 341 | |
5569 | Pathoswith | 342 | push edx |
2288 | clevermous | 343 | mov edx, [hdbase] |
5569 | Pathoswith | 344 | add edx, 7 ; ATACommand |
345 | mov al, bl |
||
346 | out dx, al ; Start hard drive |
||
347 | pop edx |
||
2288 | clevermous | 348 | |
5569 | Pathoswith | 349 | sub edx, 4 ; Bus Master IDE Command register |
350 | mov al, 1 ; set direction |
||
351 | cmp bl, 35h ; write |
||
352 | jz @f |
||
353 | add al, 8 ; read |
||
354 | @@: |
||
355 | out dx, al ; Start Bus Master |
||
356 | mov [IDE_common_irq_param], 14 |
||
357 | mov eax, [hdpos] |
||
358 | dec eax |
||
359 | test eax, 10b |
||
360 | jz @f |
||
361 | inc [IDE_common_irq_param] |
||
362 | @@: |
||
363 | push edi esi ebx |
||
364 | xor ecx, ecx |
||
365 | xor esi, esi |
||
366 | call create_event |
||
367 | mov [eventPointer], eax |
||
368 | mov [eventID], edx |
||
369 | sti |
||
370 | mov ebx, edx |
||
371 | mov ecx, 300 |
||
372 | call wait_event_timeout |
||
373 | test eax, eax |
||
374 | jnz @f |
||
375 | mov [IDE_common_irq_param], 0 |
||
376 | mov eax, [eventPointer] |
||
377 | mov ebx, [eventID] |
||
378 | call destroy_event |
||
379 | mov [eventPointer], 0 |
||
380 | @@: |
||
381 | pop ebx esi |
||
382 | call kernel_free |
||
383 | cmp [eventPointer], 0 |
||
384 | jz .hd_error |
||
2288 | clevermous | 385 | ret |
5852 | pathoswith | 386 | |
387 | .LBA28: |
||
388 | mov edx, [hdbase] |
||
389 | add edx, 6 |
||
390 | mov al, byte [hdid] |
||
391 | add al, 224 |
||
392 | out dx, al ; select the desired drive |
||
393 | call save_hd_wait_timeout |
||
394 | inc edx |
||
395 | @@: |
||
396 | call check_hd_wait_timeout |
||
397 | jc .hd_error |
||
398 | in al, dx |
||
399 | test al, 128 ; ready for command? |
||
400 | jnz @b |
||
401 | pushfd ; fill the ports |
||
402 | cli |
||
403 | mov edx, [hdbase] |
||
404 | inc edx |
||
405 | inc edx |
||
406 | mov al, [blockSize] |
||
407 | out dx, al ; Sector count (7:0) |
||
408 | inc edx |
||
409 | mov eax, [sector] |
||
410 | out dx, al ; LBA (7:0) |
||
411 | inc edx |
||
412 | shr eax, 8 |
||
413 | out dx, al ; LBA (15:8) |
||
414 | inc edx |
||
415 | shr eax, 8 |
||
416 | out dx, al ; LBA (23:16) |
||
417 | inc edx |
||
418 | shr eax, 8 |
||
419 | add al, byte [hdid] |
||
420 | add al, 224 |
||
421 | out dx, al ; LBA (27:24) |
||
5569 | Pathoswith | 422 | .PIO: |
423 | inc edx ; ATACommand |
||
424 | mov al, bl |
||
425 | out dx, al ; Start hard drive |
||
3881 | mario79 | 426 | popfd |
5569 | Pathoswith | 427 | .sectorTransfer: |
428 | call save_hd_wait_timeout |
||
429 | in al, dx |
||
430 | in al, dx |
||
431 | in al, dx |
||
432 | in al, dx |
||
433 | @@: |
||
434 | call check_hd_wait_timeout |
||
435 | jc .hd_error |
||
436 | in al, dx |
||
437 | test al, 8 ; ready for transfer? |
||
438 | jz @b |
||
439 | cmp [hd_setup], 1 ; do not mark error for setup request |
||
440 | jz @f |
||
441 | test al, 1 ; previous command ended up with an error |
||
442 | jnz .hd_error |
||
443 | @@: |
||
3712 | mario79 | 444 | pushfd |
2288 | clevermous | 445 | cli |
5569 | Pathoswith | 446 | cld |
2288 | clevermous | 447 | mov ecx, 256 |
448 | mov edx, [hdbase] |
||
5852 | pathoswith | 449 | cmp bl, 30h |
450 | jnc .write |
||
5569 | Pathoswith | 451 | rep insw |
452 | jmp @f |
||
453 | .write: |
||
2288 | clevermous | 454 | rep outsw |
5569 | Pathoswith | 455 | @@: |
3712 | mario79 | 456 | popfd |
5569 | Pathoswith | 457 | add edx, 7 |
458 | dec dword [blockSize] |
||
459 | jnz .sectorTransfer |
||
2288 | clevermous | 460 | ret |
5569 | Pathoswith | 461 | .hd_error: |
462 | cmp bl, 30h |
||
463 | jnc hd_write_error |
||
464 | ;----------------------------------------------------------------- |
||
2288 | clevermous | 465 | hd_read_error: |
3712 | mario79 | 466 | if lang eq sp |
467 | DEBUGF 1,"K : FS - HD error de lectura\n" |
||
468 | else |
||
469 | DEBUGF 1,"K : FS - HD read error\n" |
||
470 | end if |
||
5569 | Pathoswith | 471 | stc |
2288 | clevermous | 472 | ret |
5569 | Pathoswith | 473 | ;----------------------------------------------------------------- |
2288 | clevermous | 474 | hd_write_error: |
3309 | esevece | 475 | if lang eq sp |
476 | DEBUGF 1,"K : FS - HD error de escritura\n" |
||
477 | else |
||
478 | DEBUGF 1,"K : FS - HD write error\n" |
||
479 | end if |
||
5569 | Pathoswith | 480 | stc |
2288 | clevermous | 481 | ret |
5569 | Pathoswith | 482 | ;----------------------------------------------------------------- |
483 | save_hd_wait_timeout: |
||
484 | mov eax, [timer_ticks] |
||
485 | add eax, 300 ; 3 sec timeout |
||
486 | mov [hd_wait_timeout], eax |
||
2288 | clevermous | 487 | ret |
5569 | Pathoswith | 488 | ;----------------------------------------------------------------- |
489 | check_hd_wait_timeout: |
||
490 | mov eax, [timer_ticks] |
||
491 | cmp [hd_wait_timeout], eax |
||
492 | jc @f |
||
493 | ret |
||
3712 | mario79 | 494 | @@: |
5569 | Pathoswith | 495 | if lang eq sp |
496 | DEBUGF 1,"K : FS - HD tiempo de espera agotado\n" |
||
497 | else |
||
498 | DEBUGF 1,"K : FS - HD timeout\n" |
||
499 | end if |
||
500 | stc |
||
2288 | clevermous | 501 | ret |
5569 | Pathoswith | 502 | ;----------------------------------------------------------------- |
2288 | clevermous | 503 | align 4 |
3870 | mario79 | 504 | IDE_irq_14_handler: |
505 | IDE_irq_15_handler: |
||
5569 | Pathoswith | 506 | IDE_common_irq_handler: |
6015 | clevermous | 507 | ; Most of the time, we are here because we have requested |
508 | ; a DMA transfer for the corresponding drive. |
||
509 | ; However, |
||
510 | ; a) we can be here because IDE IRQ is shared with some other device, |
||
511 | ; that device has actually raised IRQ, |
||
512 | ; it has nothing to do with IDE; |
||
513 | ; b) we can be here because IDE controller just does not want |
||
514 | ; to be silent and reacts to something even though |
||
515 | ; we have, in theory, disabled IRQs. |
||
516 | ; If the interrupt corresponds to our current request, |
||
517 | ; remove the interrupt request and raise the event for the waiting code. |
||
518 | ; In the case a), just return zero - not our interrupt. |
||
519 | ; In the case b), remove the interrupt request and hope for the best. |
||
5569 | Pathoswith | 520 | ; DEBUGF 1, 'K : IDE_irq_handler %x\n', [IDE_common_irq_param]:2 |
6015 | clevermous | 521 | mov ecx, [esp+4] |
4700 | mario79 | 522 | mov dx, [ecx+IDE_DATA.RegsBaseAddres] |
5569 | Pathoswith | 523 | add edx, 2 ; Bus Master IDE Status register |
4291 | mario79 | 524 | in al, dx |
5569 | Pathoswith | 525 | test al, 4 |
6015 | clevermous | 526 | jnz .interrupt_from_primary |
527 | add edx, 8 |
||
528 | in al, dx |
||
529 | test al, 4 |
||
530 | jnz .interrupt_from_secondary |
||
531 | .exit_notour: |
||
532 | xor eax, eax ; not our interrupt |
||
533 | ret |
||
534 | .interrupt_from_primary: |
||
5569 | Pathoswith | 535 | out dx, al ; clear Interrupt bit |
4291 | mario79 | 536 | sub edx, 2 |
537 | xor eax, eax |
||
5569 | Pathoswith | 538 | out dx, al ; clear Bus Master IDE Command register |
6015 | clevermous | 539 | mov dx, [ecx+IDE_DATA.BAR0_val] |
5569 | Pathoswith | 540 | add edx, 7 |
6015 | clevermous | 541 | in al, dx ; read status register |
542 | cmp [IDE_common_irq_param], 14 |
||
543 | jz .raise |
||
544 | .exit_our: |
||
545 | mov al, 1 |
||
546 | ret |
||
547 | .interrupt_from_secondary: |
||
548 | out dx, al ; clear Interrupt bit |
||
549 | sub edx, 2 |
||
550 | xor eax, eax |
||
551 | out dx, al ; clear Bus Master IDE Command register |
||
552 | mov dx, [ecx+IDE_DATA.BAR2_val] |
||
553 | add edx, 7 |
||
554 | in al, dx ; read status register |
||
555 | cmp [IDE_common_irq_param], 15 |
||
556 | jnz .exit_our |
||
557 | .raise: |
||
558 | cmp ecx, [IDE_controller_pointer] |
||
559 | jnz .exit_our |
||
560 | pushad |
||
5569 | Pathoswith | 561 | mov eax, [eventPointer] |
562 | mov ebx, [eventID] |
||
563 | xor edx, edx |
||
564 | xor esi, esi |
||
565 | call raise_event |
||
2288 | clevermous | 566 | popad |
5569 | Pathoswith | 567 | mov al, 1 ; remove the interrupt request |
4291 | mario79 | 568 | ret |
5569 | Pathoswith | 569 | ;----------------------------------------------------------------- |