ReactOS  0.4.15-dev-1647-g91fceab
id_dma.cpp
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1 /*++
2 
3 Copyright (c) 2002-2016 Alexander A. Telyatnikov (Alter)
4 
5 Module Name:
6  id_dma.cpp
7 
8 Abstract:
9  This is the miniport driver for ATAPI IDE controllers
10  With Busmaster DMA support
11 
12 Author:
13  Alexander A. Telyatnikov (Alter)
14 
15 Environment:
16  kernel mode only
17 
18 Notes:
19 
20  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 
31 Revision History:
32 
33  This module is a port from FreeBSD 4.3-6.1 ATA driver (ata-dma.c, ata-chipset.c) by
34  Søren Schmidt, Copyright (c) 1998-2008
35 
36  Changed defaulting-to-generic-PIO/DMA policy
37  Added PIO settings for VIA
38  Optimized VIA/AMD/nVidia init part
39  Optimized Promise TX2 init part
40  Optimized Intel init part
41  by Alex A. Telyatnikov (Alter) (c) 2002-2007
42 
43 Licence:
44  GPLv2
45 
46 
47 --*/
48 
49 #include "stdafx.h"
50 
51 static const ULONG valid_udma[7] = {0,0,2,0,4,5,6};
52 
53 static const CHAR retry_Wdma[MAX_RETRIES+1] = {2, 2, 2,-1,-1,-1};
54 static const CHAR retry_Udma[MAX_RETRIES+1] = {6, 2,-1,-1,-1,-1};
55 
56 PHYSICAL_ADDRESS ph4gb = {{0xFFFFFFFF, 0}};
57 
58 VOID
59 NTAPI
60 cyrix_timing (
61  IN PHW_DEVICE_EXTENSION deviceExtension,
62  IN ULONG dev, // physical device number (0-3)
63  IN CHAR mode
64  );
65 
66 VOID
67 NTAPI
68 promise_timing (
69  IN PHW_DEVICE_EXTENSION deviceExtension,
70  IN ULONG dev, // physical device number (0-3)
71  IN CHAR mode
72  );
73 
74 VOID
75 NTAPI
76 hpt_timing (
77  IN PHW_DEVICE_EXTENSION deviceExtension,
78  IN ULONG dev, // physical device number (0-3)
79  IN CHAR mode
80  );
81 
82 VOID
83 NTAPI
84 via82c_timing (
85  IN PHW_DEVICE_EXTENSION deviceExtension,
86  IN ULONG dev, // physical device number (0-3)
87  IN CHAR mode
88  );
89 
90 ULONG
91 NTAPI
92 hpt_cable80(
93  IN PHW_DEVICE_EXTENSION deviceExtension,
94  IN ULONG channel // physical channel number (0-1)
95  );
96 
97 ULONG
98 NTAPI
99 AtapiVirtToPhysAddr_(
100  IN PVOID HwDeviceExtension,
101  IN PSCSI_REQUEST_BLOCK Srb,
102  IN PUCHAR data,
103  OUT PULONG count, /* bytes */
104  OUT PULONG ph_addru
105  )
106 {
107  PHYSICAL_ADDRESS ph_addr;
108  ULONG addr;
109 
110  *(volatile char*)data; // Touch memory, this will prevent condition of not-ready page table for valid addresses
111  // See ROS-11894 bug
112  ph_addr = MmGetPhysicalAddress(data);
113  KdPrint3((PRINT_PREFIX "AtapiVirtToPhysAddr_: %x -> %8.8x:%8.8x\n", data, ph_addr.HighPart, ph_addr.LowPart));
114  if(!ph_addru && ph_addr.HighPart) {
115  // do so until we add 64bit address support
116  // or some workaround
117  *count = 0;
118  return -1;
119  }
120 
121  (*ph_addru) = ph_addr.HighPart;
122  //addr = ScsiPortConvertPhysicalAddressToUlong(ph_addr);
123  addr = ph_addr.LowPart;
124  if(!addr && !ph_addr.HighPart) {
125  *count = 0;
126  return 0;
127  }
128  if(!Srb) {
129  *count = sizeof(BM_DMA_ENTRY)*ATA_DMA_ENTRIES;
130  } else {
131  *count = PAGE_SIZE - (addr & (PAGE_SIZE-1));
132  }
133  return addr;
134 } // end AtapiVirtToPhysAddr_()
135 
136 VOID
137 NTAPI
138 AtapiDmaAlloc(
139  IN PVOID HwDeviceExtension,
140  IN PPORT_CONFIGURATION_INFORMATION ConfigInfo,
141  IN ULONG lChannel // logical channel,
142  )
143 {
144 #ifdef USE_OWN_DMA
145  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
146  PHW_CHANNEL chan = &(deviceExtension->chan[lChannel]);
147  ULONG c = lChannel;
148  ULONG i;
149  ULONG ph_addru;
150 
151  deviceExtension->chan[c].CopyDmaBuffer = FALSE;
152 
153  if(!deviceExtension->Host64 && (WinVer_Id() > WinVer_NT)) {
154  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: allocate tmp buffers below 4Gb\n"));
155  if(chan->DB_PRD) {
156  KdPrint2((PRINT_PREFIX " already initialized %x\n", chan->DB_PRD));
157  return;
158  }
159  chan->DB_PRD = MmAllocateContiguousMemory(sizeof(((PATA_REQ)NULL)->dma_tab), ph4gb);
160  if(chan->DB_PRD) {
161  chan->DB_PRD_PhAddr = AtapiVirtToPhysAddr(HwDeviceExtension, NULL, (PUCHAR)(chan->DB_PRD), &i, &ph_addru);
162  if(!chan->DB_PRD_PhAddr || !i || ((LONG)(chan->DB_PRD_PhAddr) == -1)) {
163  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: No DB PRD BASE\n" ));
164  chan->DB_PRD = NULL;
165  chan->DB_PRD_PhAddr = 0;
166  return;
167  }
168  if(ph_addru) {
169  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: No DB PRD below 4Gb\n" ));
170  goto err_1;
171  }
172  }
173  chan->DB_IO = MmAllocateContiguousMemory(deviceExtension->MaximumDmaTransferLength, ph4gb);
174  if(chan->DB_IO) {
175  chan->DB_IO_PhAddr = AtapiVirtToPhysAddr(HwDeviceExtension, NULL, (PUCHAR)(chan->DB_IO), &i, &ph_addru);
176  if(!chan->DB_IO_PhAddr || !i || ((LONG)(chan->DB_IO_PhAddr) == -1)) {
177  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: No DB IO BASE\n" ));
178 err_1:
179  MmFreeContiguousMemory(chan->DB_PRD);
180  chan->DB_PRD = NULL;
181  chan->DB_PRD_PhAddr = 0;
182  chan->DB_IO = NULL;
183  chan->DB_IO_PhAddr = 0;
184  return;
185  }
186  if(ph_addru) {
187  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: No DB IO below 4Gb\n" ));
188  MmFreeContiguousMemory(chan->DB_IO);
189  goto err_1;
190  }
191  }
192  }
193 
194 
195  if(deviceExtension->HwFlags & UNIATA_AHCI) {
196  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: AHCI\n" ));
197  if(chan->AhciCtlBlock) {
198  KdPrint2((PRINT_PREFIX " already initialized %x\n", chan->AhciCtlBlock));
199  return;
200  }
201  // Need 1K-byte alignment
202  chan->AhciCtlBlock0 = (PIDE_AHCI_CHANNEL_CTL_BLOCK)MmAllocateContiguousMemory(
203  sizeof(IDE_AHCI_CHANNEL_CTL_BLOCK)+AHCI_CLB_ALIGNEMENT_MASK,
204  ph4gb);
205  if(chan->AhciCtlBlock0) {
206  union {
207  PUCHAR AhciCtlBlock;
208  ULONGLONG AhciCtlBlock64;
209  };
210  AhciCtlBlock64 = 0;
211  AhciCtlBlock = (PUCHAR)chan->AhciCtlBlock0;
212 
213  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: CLP BASE %I64x\n", AhciCtlBlock64));
214 
215  AhciCtlBlock64 += AHCI_CLB_ALIGNEMENT_MASK;
216  AhciCtlBlock64 &= ~AHCI_CLB_ALIGNEMENT_MASK;
217 
218  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: CLP BASE 1k-aligned %I64x\n", AhciCtlBlock64));
219 
220  chan->AhciCtlBlock = (PIDE_AHCI_CHANNEL_CTL_BLOCK)AhciCtlBlock;
221 
222  chan->AHCI_CTL_PhAddr = AtapiVirtToPhysAddr(HwDeviceExtension, NULL, (PUCHAR)(chan->AhciCtlBlock), &i, &ph_addru);
223  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: CLP Phys BASE %I64x\n", chan->AHCI_CTL_PhAddr));
224  if(!chan->AHCI_CTL_PhAddr || !i || ((LONG)(chan->AHCI_CTL_PhAddr) == -1)) {
225  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: No AHCI CLP BASE\n" ));
226  chan->AhciCtlBlock = NULL;
227  chan->AHCI_CTL_PhAddr = 0;
228  return;
229  }
230  if(ph_addru) {
231  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: No AHCI CLP below 4Gb\n" ));
232  MmFreeContiguousMemory(chan->AhciCtlBlock0);
233  chan->AhciCtlBlock = NULL;
234  chan->AHCI_CTL_PhAddr = 0;
235  return;
236  }
237  } else {
238  KdPrint2((PRINT_PREFIX "AtapiDmaAlloc: Can't alloc AHCI CLP\n"));
239  }
240  }
241 #endif //USE_OWN_DMA
242  return;
243 } // end AtapiDmaAlloc()
244 
245 BOOLEAN
246 NTAPI
247 AtapiDmaSetup(
248  IN PVOID HwDeviceExtension,
249  IN ULONG DeviceNumber,
250  IN ULONG lChannel, // logical channel,
251  IN PSCSI_REQUEST_BLOCK Srb,
252  IN PUCHAR data,
253  IN ULONG count /* bytes */
254  )
255 {
256  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
257  ULONG dma_count, dma_base, dma_baseu;
258  ULONG dma_count0, dma_base0;
259  ULONG i;
260  PHW_CHANNEL chan = &(deviceExtension->chan[lChannel]);
261  PATA_REQ AtaReq = (PATA_REQ)(Srb->SrbExtension);
262  BOOLEAN use_DB_IO = FALSE;
263  BOOLEAN use_AHCI = (deviceExtension->HwFlags & UNIATA_AHCI) ? TRUE : FALSE;
264  ULONG orig_count = count;
265  ULONG max_entries = use_AHCI ? ATA_AHCI_DMA_ENTRIES : ATA_DMA_ENTRIES;
266  //ULONG max_frag = use_AHCI ? (0x3fffff+1) : (4096); // DEBUG, replace 4096 for proper chipset-specific value
267  ULONG max_frag = deviceExtension->DmaSegmentLength;
268  ULONG seg_align = deviceExtension->DmaSegmentAlignmentMask;
269 
270  if(AtaReq->dma_entries) {
271  AtaReq->Flags |= REQ_FLAG_DMA_OPERATION;
272  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: already setup, %d entries\n", AtaReq->dma_entries));
273  return TRUE;
274  }
275  AtaReq->ata.dma_base = 0;
276  AtaReq->Flags &= ~REQ_FLAG_DMA_OPERATION;
277 
278  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: mode %#x, data %x, count %x, lCh %x, dev %x\n",
279  chan->lun[DeviceNumber]->TransferMode,
280  data, count, lChannel, DeviceNumber ));
281  if(chan->lun[DeviceNumber]->TransferMode < ATA_DMA) {
282  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: Not DMA mode, assume this is just preparation\n" ));
283  //return FALSE;
284  }
285  //KdPrint2((PRINT_PREFIX " checkpoint 1\n" ));
286  if(!count) {
287  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: count=0\n" ));
288  return FALSE;
289  }
290  //KdPrint2((PRINT_PREFIX " checkpoint 2\n" ));
291  if(count > deviceExtension->MaximumDmaTransferLength) {
292  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: deviceExtension->MaximumDmaTransferLength > count\n" ));
293  return FALSE;
294  }
295  //KdPrint2((PRINT_PREFIX " checkpoint 3\n" ));
296  if((ULONG_PTR)data & deviceExtension->AlignmentMask) {
297  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: unaligned data: %#x (%#x)\n", data, deviceExtension->AlignmentMask));
298  return FALSE;
299  }
300 
301  //KdPrint2((PRINT_PREFIX " checkpoint 4\n" ));
302  if(use_AHCI) {
303  KdPrint2((PRINT_PREFIX " get Phys(AHCI_CMD=%x)\n", AtaReq->ahci.ahci_cmd_ptr ));
304  dma_base = AtapiVirtToPhysAddr(HwDeviceExtension, NULL, (PUCHAR)(AtaReq->ahci.ahci_cmd_ptr), &i, &dma_baseu);
305  AtaReq->ahci.ahci_base64 = 0; // clear before setup
306  } else {
307  KdPrint2((PRINT_PREFIX " get Phys(PRD=%x)\n", &(AtaReq->dma_tab) ));
308  dma_base = AtapiVirtToPhysAddr(HwDeviceExtension, NULL, (PUCHAR)&(AtaReq->dma_tab) /*chan->dma_tab*/, &i, &dma_baseu);
309  }
310  if(dma_baseu && i) {
311  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: SRB built-in PRD above 4Gb: %8.8x%8.8x\n", dma_baseu, dma_base));
312  if(!deviceExtension->Host64) {
313  dma_base = chan->DB_PRD_PhAddr;
314  AtaReq->Flags |= REQ_FLAG_DMA_DBUF_PRD;
315  i = 1;
316  }
317  } else
318  if(!dma_base || !i || ((LONG)(dma_base) == -1)) {
319  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: No BASE\n" ));
320  return FALSE;
321  }
322  AtaReq->ata.dma_base = dma_base; // aliased to AtaReq->ahci.ahci_base64
323 
324  KdPrint2((PRINT_PREFIX " get Phys(data[0]=%x)\n", data ));
325  dma_base = AtapiVirtToPhysAddr(HwDeviceExtension, Srb, data, &dma_count, &dma_baseu);
326  if(dma_baseu && dma_count) {
327  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: 1st block of buffer above 4Gb: %8.8x%8.8x cnt=%x\n", dma_baseu, dma_base, dma_count));
328  if(!deviceExtension->Host64) {
329 retry_DB_IO:
330  use_DB_IO = TRUE;
331  dma_base = chan->DB_IO_PhAddr;
332  data = (PUCHAR)(chan->DB_IO);
333  } else {
334  AtaReq->ahci.ahci_base64 = (ULONGLONG)dma_base | ((ULONGLONG)dma_baseu << 32);
335  }
336  } else
337  if(!dma_count || ((LONG)(dma_base) == -1)) {
338  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: No 1st block\n" ));
339  //AtaReq->dma_base = NULL;
340  AtaReq->ahci.ahci_base64 = NULL;
341  return FALSE;
342  }
343 
344  dma_count = min(count, (PAGE_SIZE - ((ULONG_PTR)data & PAGE_MASK)));
345  data += dma_count;
346  count -= dma_count;
347  i = 0;
348 
349  dma_count0 = dma_count;
350  dma_base0 = dma_base;
351 
352  while (count) {
353 /* KdPrint2((PRINT_PREFIX " segments %#x+%#x == %#x && %#x+%#x <= %#x\n",
354  dma_base0, dma_count0, dma_base,
355  dma_count0, dma_count, max_frag));*/
356  if(dma_base0+dma_count0 == dma_base &&
357  dma_count0+dma_count <= max_frag) {
358  // 'i' should be always > 0 here
359  // for BM we cannot cross 64k boundary
360  if(dma_base & seg_align) {
361  //KdPrint2((PRINT_PREFIX " merge segments\n" ));
362  ASSERT(i);
363  //BrutePoint();
364  i--;
365  dma_base = dma_base0;
366  dma_count += dma_count0;
367  }
368  }
369  if(use_AHCI) {
370  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].base = dma_base;
371  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].baseu = dma_baseu;
372  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].Reserved1 = 0;
373  *((PULONG)&(AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].DBC_ULONG)) = ((dma_count-1) & 0x3fffff);
374 /* AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].Reserved2 = 0;
375  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].I = 0;*/
376  KdPrint2((PRINT_PREFIX " ph data[%d]=%x:%x (%x)\n", i, dma_baseu, dma_base, AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].DBC));
377  } else {
378  AtaReq->dma_tab[i].base = dma_base;
379  AtaReq->dma_tab[i].count = (dma_count & 0xffff);
380  }
381  dma_count0 = dma_count;
382  dma_base0 = dma_base;
383  i++;
384  if (i >= max_entries) {
385  KdPrint2((PRINT_PREFIX "too many segments in DMA table\n" ));
386  //AtaReq->dma_base = NULL;
387  AtaReq->ahci.ahci_base64 = NULL;
388  return FALSE;
389  }
390  KdPrint2((PRINT_PREFIX " get Phys(data[n=%d+%x]=%x)\n", i, dma_count0, data ));
391  dma_base = AtapiVirtToPhysAddr(HwDeviceExtension, Srb, data, &dma_count, &dma_baseu);
392  if(dma_baseu && dma_count) {
393  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: block of buffer above 4Gb: %8.8x%8.8x, cnt=%x\n", dma_baseu, dma_base, dma_count));
394  if(!deviceExtension->Host64) {
395  if(use_DB_IO) {
396  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: *ERROR* special buffer above 4Gb: %8.8x%8.8x\n", dma_baseu, dma_base));
397  return FALSE;
398  }
399  count = orig_count;
400  goto retry_DB_IO;
401  }
402  } else
403  if(!dma_count || !dma_base || ((LONG)(dma_base) == -1)) {
404  //AtaReq->dma_base = NULL;
405  AtaReq->ahci.ahci_base64 = 0;
406  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: No NEXT block\n" ));
407  return FALSE;
408  }
409 
410  dma_count = min(count, PAGE_SIZE);
411  data += min(count, PAGE_SIZE);
412  count -= min(count, PAGE_SIZE);
413  }
414  KdPrint2((PRINT_PREFIX " set TERM\n" ));
415 /* KdPrint2((PRINT_PREFIX " segments %#x+%#x == %#x && #x+%#x <= %#x\n",
416  dma_base0, dma_count0, dma_base,
417  dma_count0, dma_count, max_frag));*/
418  if(dma_base0+dma_count0 == dma_base &&
419  dma_count0+dma_count <= max_frag) {
420  // 'i' should be always > 0 here
421  if(dma_base & seg_align) {
422  //KdPrint2((PRINT_PREFIX " merge segments\n" ));
423  //BrutePoint();
424  ASSERT(i);
425  i--;
426  dma_base = dma_base0;
427  dma_count += dma_count0;
428  }
429  }
430  if(use_AHCI) {
431  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].base = dma_base;
432  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].baseu = dma_baseu;
433  AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].Reserved1 = 0;
434  //AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].DBC = ((dma_count-1) & 0x3fffff);
435  //AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].Reserved2 = 0;
436  *((PULONG)&(AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].DBC_ULONG)) = ((dma_count-1) & 0x3fffff);
437  //AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].I = 1; // interrupt when ready
438  KdPrint2((PRINT_PREFIX " ph data[%d]=%x:%x (%x)\n", i, dma_baseu, dma_base, AtaReq->ahci.ahci_cmd_ptr->prd_tab[i].DBC));
439  if(((ULONG_PTR)&(AtaReq->ahci.ahci_cmd_ptr->prd_tab) & ~PAGE_MASK) != ((ULONG_PTR)&(AtaReq->ahci.ahci_cmd_ptr->prd_tab[i]) & ~PAGE_MASK)) {
440  KdPrint2((PRINT_PREFIX "PRD table crosses page boundary! %x vs %x\n",
441  &AtaReq->ahci.ahci_cmd_ptr->prd_tab, &(AtaReq->ahci.ahci_cmd_ptr->prd_tab[i]) ));
442  //AtaReq->Flags |= REQ_FLAG_DMA_DBUF_PRD;
443  }
444  } else {
445  AtaReq->dma_tab[i].base = dma_base;
446  AtaReq->dma_tab[i].count = (dma_count & 0xffff) | ATA_DMA_EOT;
447  if(((ULONG_PTR)&(AtaReq->dma_tab) & ~PAGE_MASK) != ((ULONG_PTR)&(AtaReq->dma_tab[i]) & ~PAGE_MASK)) {
448  KdPrint2((PRINT_PREFIX "DMA table crosses page boundary! %x vs %x\n",
449  &AtaReq->dma_tab, &(AtaReq->dma_tab[i]) ));
450  //AtaReq->Flags |= REQ_FLAG_DMA_DBUF_PRD;
451  }
452  }
453  AtaReq->dma_entries = i+1;
454 
455  if(use_DB_IO) {
456  AtaReq->Flags |= REQ_FLAG_DMA_DBUF;
457  }
458  AtaReq->Flags |= REQ_FLAG_DMA_OPERATION;
459 
460  KdPrint2((PRINT_PREFIX "AtapiDmaSetup: OK\n" ));
461  return TRUE;
462 
463 } // end AtapiDmaSetup()
464 
465 BOOLEAN
466 NTAPI
467 AtapiDmaPioSync(
468  PVOID HwDeviceExtension,
469  PSCSI_REQUEST_BLOCK Srb,
470  PUCHAR data,
471  ULONG count
472  )
473 {
474 #ifndef USE_OWN_DMA
475  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
476  ULONG dma_base;
477  PUCHAR DmaBuffer;
478  ULONG dma_count;
479  ULONG len;
480  PATA_REQ AtaReq;
481 
482  // This must never be called after DMA operation !!!
483  KdPrint2((PRINT_PREFIX "AtapiDmaPioSync: data %#x, len %#x\n", data, count));
484 
485  if(!Srb) {
486  KdPrint2((PRINT_PREFIX "AtapiDmaPioSync: !Srb\n" ));
487  return FALSE;
488  }
489 
490  AtaReq = (PATA_REQ)(Srb->SrbExtension);
491 
492  // do nothing on PCI (This can be changed. We cannot guarantee,
493  // that CommonBuffer will always point to User's buffer,
494  // however, this usually happens on PCI-32)
495  if(deviceExtension->OrigAdapterInterfaceType == PCIBus) {
496  return TRUE;
497  }
498  // do nothing for DMA
499  if(AtaReq->Flags & REQ_FLAG_DMA_OPERATION) {
500  return TRUE;
501  }
502 
503  if(!data) {
504  KdPrint2((PRINT_PREFIX "AtapiDmaPioSync: !data\n" ));
505  return FALSE;
506  }
507 
508  while(count) {
509  dma_base = AtapiVirtToPhysAddr(HwDeviceExtension, Srb, data, &dma_count);
510  if(!dma_base) {
511  KdPrint2((PRINT_PREFIX "AtapiDmaPioSync: !dma_base for data %#x\n", data));
512  return FALSE;
513  }
514  DmaBuffer = (PUCHAR)ScsiPortGetVirtualAddress(HwDeviceExtension,
515  ScsiPortConvertUlongToPhysicalAddress(dma_base));
516  if(!DmaBuffer) {
517  KdPrint2((PRINT_PREFIX "AtapiDmaPioSync: !DmaBuffer for dma_base %#x\n", dma_base));
518  return FALSE;
519  }
520  len = min(dma_count, count);
521  memcpy(DmaBuffer, data, len);
522  count -= len;
523  data += len;
524  }
525 #endif //USE_OWN_DMA
526 
527  return TRUE;
528 } // end AtapiDmaPioSync()
529 
530 BOOLEAN
531 NTAPI
532 AtapiDmaDBSync(
533  PHW_CHANNEL chan,
534  PSCSI_REQUEST_BLOCK Srb
535  )
536 {
537  PATA_REQ AtaReq;
538 
539  AtaReq = (PATA_REQ)(Srb->SrbExtension);
540  if((Srb->SrbFlags & SRB_FLAGS_DATA_IN) &&
541  (AtaReq->Flags & REQ_FLAG_DMA_DBUF)) {
542  KdPrint2((PRINT_PREFIX " AtapiDmaDBSync is issued.\n"));
543  ASSERT(FALSE);
544  KdPrint2((PRINT_PREFIX " DBUF (Read)\n"));
545  RtlCopyMemory(AtaReq->DataBuffer, chan->DB_IO,
546  Srb->DataTransferLength);
547  }
548  return TRUE;
549 } // end AtapiDmaDBSync()
550 
551 BOOLEAN
552 NTAPI
553 AtapiDmaDBPreSync(
554  IN PVOID HwDeviceExtension,
555  PHW_CHANNEL chan,
556  PSCSI_REQUEST_BLOCK Srb
557  )
558 {
559  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
560  PATA_REQ AtaReq = (PATA_REQ)(Srb->SrbExtension);
561 
562  if(!AtaReq->ata.dma_base) {
563  KdPrint2((PRINT_PREFIX "AtapiDmaDBPreSync: *** !AtaReq->ata.dma_base\n"));
564  return FALSE;
565  }
566 // GetStatus(chan, statusByte2);
567  if(AtaReq->Flags & REQ_FLAG_DMA_DBUF_PRD) {
568  KdPrint2((PRINT_PREFIX " DBUF_PRD\n"));
569  ASSERT(FALSE);
570  if(deviceExtension->HwFlags & UNIATA_AHCI) {
571  RtlCopyMemory(chan->DB_PRD, AtaReq->ahci.ahci_cmd_ptr, sizeof(AtaReq->ahci_cmd0));
572  } else {
573  RtlCopyMemory(chan->DB_PRD, &(AtaReq->dma_tab), sizeof(AtaReq->dma_tab));
574  }
575  }
576  if(!(Srb->SrbFlags & SRB_FLAGS_DATA_IN) &&
577  (AtaReq->Flags & REQ_FLAG_DMA_DBUF)) {
578  KdPrint2((PRINT_PREFIX " DBUF (Write)\n"));
579  ASSERT(FALSE);
580  RtlCopyMemory(chan->DB_IO, AtaReq->DataBuffer,
581  Srb->DataTransferLength);
582  }
583  return TRUE;
584 } // end AtapiDmaDBPreSync()
585 
586 VOID
587 NTAPI
588 AtapiDmaStart(
589  IN PVOID HwDeviceExtension,
590  IN ULONG DeviceNumber,
591  IN ULONG lChannel, // logical channel,
592  IN PSCSI_REQUEST_BLOCK Srb
593  )
594 {
595  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
596  //PIDE_BUSMASTER_REGISTERS BaseIoAddressBM = deviceExtension->BaseIoAddressBM[lChannel];
597  PATA_REQ AtaReq = (PATA_REQ)(Srb->SrbExtension);
598  PHW_CHANNEL chan = &deviceExtension->chan[lChannel];
599 
600  ULONG VendorID = deviceExtension->DevID & 0xffff;
601  ULONG ChipType = deviceExtension->HwFlags & CHIPTYPE_MASK;
602 // UCHAR statusByte2;
603 /*
604  GetStatus(chan, statusByte2);
605  KdPrint2((PRINT_PREFIX "AtapiDmaStart: %s on %#x:%#x\n",
606  (Srb->SrbFlags & SRB_FLAGS_DATA_IN) ? "read" : "write",
607  lChannel, DeviceNumber ));
608 */
609  if(!AtaReq->ata.dma_base) {
610  KdPrint2((PRINT_PREFIX "AtapiDmaStart: *** !AtaReq->ata.dma_base\n"));
611  return;
612  }
613  KdPrint2((PRINT_PREFIX "AtapiDmaStart: lchan=%d\n", lChannel));
614 
615 /*
616 // GetStatus(chan, statusByte2);
617  if(AtaReq->Flags & REQ_FLAG_DMA_DBUF_PRD) {
618  KdPrint2((PRINT_PREFIX " DBUF_PRD\n"));
619  ASSERT(FALSE);
620  if(deviceExtension->HwFlags & UNIATA_AHCI) {
621  RtlCopyMemory(chan->DB_PRD, AtaReq->ahci.ahci_cmd_ptr, sizeof(AtaReq->ahci_cmd0));
622  } else {
623  RtlCopyMemory(chan->DB_PRD, &(AtaReq->dma_tab), sizeof(AtaReq->dma_tab));
624  }
625  }
626  if(!(Srb->SrbFlags & SRB_FLAGS_DATA_IN) &&
627  (AtaReq->Flags & REQ_FLAG_DMA_DBUF)) {
628  KdPrint2((PRINT_PREFIX " DBUF (Write)\n"));
629  ASSERT(FALSE);
630  RtlCopyMemory(chan->DB_IO, AtaReq->DataBuffer,
631  Srb->DataTransferLength);
632  }
633 */
634  // set flag
635  chan->ChannelCtrlFlags |= CTRFLAGS_DMA_ACTIVE;
636 
637  switch(VendorID) {
638  case ATA_PROMISE_ID:
639  if(ChipType == PRNEW) {
640  ULONG Channel = deviceExtension->Channel + lChannel;
641 
642  if(chan->ChannelCtrlFlags & CTRFLAGS_LBA48) {
643  AtapiWritePortEx4(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),(Channel ? 0x24 : 0x20),
644  ((Srb->SrbFlags & SRB_FLAGS_DATA_IN) ? 0x05000000 : 0x06000000) | (Srb->DataTransferLength >> 1)
645  );
646  }
647 /*
648  } else
649  if(deviceExtension->MemIo) {
650  // begin transaction
651  AtapiWritePort4(chan,
652  IDX_BM_Command,
653  (AtapiReadPort4(chan,
654  IDX_BM_Command) & ~0x000000c0) |
655  ((Srb->SrbFlags & SRB_FLAGS_DATA_IN) ? 0x00000080 : 0x000000c0) );
656  return;
657 */
658  }
659  break;
660  }
661 
662  // set pointer to Pointer Table
663  AtapiWritePort4(chan, IDX_BM_PRD_Table,
664  AtaReq->ata.dma_base
665  );
666  // set transfer direction
667  AtapiWritePort1(chan, IDX_BM_Command,
668  (Srb->SrbFlags & SRB_FLAGS_DATA_IN) ? BM_COMMAND_READ : BM_COMMAND_WRITE);
669  // clear Error & Intr bits (writeing 1 clears bits)
670  // set DMA capability bit
671  AtapiWritePort1(chan, IDX_BM_Status,
672  AtapiReadPort1(chan, IDX_BM_Status) |
673  (BM_STATUS_INTR | BM_STATUS_ERR) /*|
674  (DeviceNumber ? BM_STATUS_DRIVE_1_DMA : BM_STATUS_DRIVE_0_DMA)*/);
675  // begin transaction
676  AtapiWritePort1(chan, IDX_BM_Command,
677  AtapiReadPort1(chan, IDX_BM_Command) |
678  BM_COMMAND_START_STOP);
679  return;
680 
681 } // end AtapiDmaStart()
682 
683 UCHAR
684 NTAPI
685 AtapiDmaDone(
686  IN PVOID HwDeviceExtension,
687  IN ULONG DeviceNumber,
688  IN ULONG lChannel, // logical channel,
689  IN PSCSI_REQUEST_BLOCK Srb
690  )
691 {
692  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
693  //PIDE_BUSMASTER_REGISTERS BaseIoAddressBM = deviceExtension->BaseIoAddressBM[lChannel];
694  PHW_CHANNEL chan = &deviceExtension->chan[lChannel];
695  UCHAR dma_status;
696 
697  ULONG VendorID = deviceExtension->DevID & 0xffff;
698  ULONG ChipType = deviceExtension->HwFlags & CHIPTYPE_MASK;
699 
700  KdPrint2((PRINT_PREFIX "AtapiDmaDone: dev %d\n", DeviceNumber));
701 
702  if(deviceExtension->HwFlags & UNIATA_AHCI) {
703  KdPrint2((PRINT_PREFIX " ACHTUNG! should not be called for AHCI!\n"));
704  return IDE_STATUS_WRONG;
705  }
706 
707  switch(VendorID) {
708  case ATA_PROMISE_ID:
709  if(ChipType == PRNEW) {
710  ULONG Channel = deviceExtension->Channel + lChannel;
711 /*
712  AtapiWritePortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11,
713  AtapiReadPortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11) &
714  ~(Channel ? 0x08 : 0x02));
715 */
716  if(chan->ChannelCtrlFlags & CTRFLAGS_LBA48) {
717  AtapiWritePortEx4(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),(Channel ? 0x24 : 0x20),
718  0
719  );
720  }
721 /*
722  } else
723  if(deviceExtension->MemIo) {
724  // end transaction
725  AtapiWritePort4(chan,
726  IDX_BM_Command,
727  (AtapiReadPort4(chan,
728  IDX_BM_Command) & ~0x00000080) );
729  // clear flag
730  chan->ChannelCtrlFlags &= ~CTRFLAGS_DMA_ACTIVE;
731  return 0;
732 */
733  }
734  break;
735  }
736 
737  // get status
738  dma_status = AtapiReadPort1(chan, IDX_BM_Status) & BM_STATUS_MASK;
739  // end transaction
740  AtapiWritePort1(chan, IDX_BM_Command,
741  AtapiReadPort1(chan, IDX_BM_Command) &
742  ~BM_COMMAND_START_STOP);
743  // clear interrupt and error status
744  AtapiWritePort1(chan, IDX_BM_Status, BM_STATUS_ERR | BM_STATUS_INTR);
745  // clear flag
746  chan->ChannelCtrlFlags &= ~CTRFLAGS_DMA_ACTIVE;
747 
748  return dma_status;
749 
750 } // end AtapiDmaDone()
751 
752 VOID
753 NTAPI
754 AtapiDmaReinit(
755  IN PHW_DEVICE_EXTENSION deviceExtension,
756  IN PHW_LU_EXTENSION LunExt,
757  IN PATA_REQ AtaReq
758  )
759 {
760  SCHAR apiomode;
761 
762  if((deviceExtension->HwFlags & UNIATA_AHCI) &&
763  !(LunExt->DeviceFlags & DFLAGS_ATAPI_DEVICE)) {
764  // skip unnecessary checks
765  KdPrint2((PRINT_PREFIX "AtapiDmaReinit: ahci, nothing to do for HDD\n"));
766  return;
767  }
768 
769  apiomode = (CHAR)AtaPioMode(&(LunExt->IdentifyData));
770 
771  if(!(AtaReq->Flags & REQ_FLAG_DMA_OPERATION)) {
772  KdPrint2((PRINT_PREFIX
773  "AtapiDmaReinit: !(AtaReq->Flags & REQ_FLAG_DMA_OPERATION), fall to PIO on Device %d\n", LunExt->Lun));
774  goto limit_pio;
775  }
776  if(deviceExtension->HwFlags & UNIATA_AHCI) {
777  if(!AtaReq->ahci.ahci_base64) {
778  KdPrint2((PRINT_PREFIX
779  "AtapiDmaReinit: no AHCI PRD, fatal on Device %d\n", LunExt->Lun));
780  goto exit;
781  }
782  } else
783  if(!AtaReq->ata.dma_base) {
784  KdPrint2((PRINT_PREFIX
785  "AtapiDmaReinit: no PRD, fall to PIO on Device %d\n", LunExt->Lun));
786  goto limit_pio;
787  }
788 
789  if((deviceExtension->HbaCtrlFlags & HBAFLAGS_DMA_DISABLED_LBA48) &&
790  (AtaReq->lba >= (LONGLONG)ATA_MAX_LBA28) &&
791  (LunExt->TransferMode > ATA_PIO5) ) {
792  KdPrint2((PRINT_PREFIX
793  "AtapiDmaReinit: FORCE_DOWNRATE on Device %d for LBA48\n", LunExt->Lun));
794  goto limit_lba48;
795  }
796 
797 
798  if(AtaReq->Flags & REQ_FLAG_FORCE_DOWNRATE) {
799  KdPrint2((PRINT_PREFIX
800  "AtapiDmaReinit: FORCE_DOWNRATE on Device %d\n", LunExt->Lun));
801  if(AtaReq->lba >= (LONGLONG)ATA_MAX_LBA28) {
802 limit_lba48:
803  LunExt->DeviceFlags |= REQ_FLAG_FORCE_DOWNRATE_LBA48;
804 limit_pio:
805  // do not make extra work if we already use PIO
806  if(/*LunExt->TransferMode >= ATA_DMA*/
807  (LunExt->TransferMode > ATA_PIO5) && (LunExt->TransferMode != ATA_PIO0+apiomode)
808  ) {
809  KdPrint2((PRINT_PREFIX
810  "AtapiDmaReinit: set PIO mode on Device %d (%x -> %x)\n", LunExt->Lun, LunExt->TransferMode, ATA_PIO0+apiomode));
811  AtapiDmaInit(deviceExtension, LunExt->Lun, LunExt->chan->lChannel,
812  apiomode,
813  -1,
814  -1 );
815  } else
816  if(LunExt->LimitedTransferMode < LunExt->TransferMode) {
817  KdPrint2((PRINT_PREFIX
818  "AtapiDmaReinit: set PIO mode on Device %d (%x -> %x) (2)\n", LunExt->Lun, LunExt->TransferMode, LunExt->LimitedTransferMode));
819  AtapiDmaInit(deviceExtension, LunExt->Lun, LunExt->chan->lChannel,
820  LunExt->LimitedTransferMode-ATA_PIO0,
821  -1,
822  -1 );
823  }
824 
825  } else {
826  KdPrint2((PRINT_PREFIX
827  "AtapiDmaReinit: set MAX mode on Device %d\n", LunExt->Lun));
828  AtapiDmaInit(deviceExtension, LunExt->Lun, LunExt->chan->lChannel,
829  apiomode,
830  min( retry_Wdma[AtaReq->retry],
831  (CHAR)AtaWmode(&(LunExt->IdentifyData)) ),
832  min( retry_Udma[AtaReq->retry],
833  (CHAR)AtaUmode(&(LunExt->IdentifyData)) ) );
834  }
835 // LunExt->DeviceFlags &= ~DFLAGS_FORCE_DOWNRATE;
836  } else
837  if(
838  (LunExt->LimitedTransferMode >
839  LunExt->TransferMode) ||
840  (LunExt->DeviceFlags & DFLAGS_REINIT_DMA) ||
841  ((deviceExtension->HwFlags & UNIATA_CHAN_TIMINGS) && ((ULONG)LunExt->Lun != LunExt->chan->last_cdev))) {
842  // restore IO mode
843  KdPrint2((PRINT_PREFIX
844  "AtapiDmaReinit: restore IO mode on Device %d, last dev %d\n", LunExt->Lun, LunExt->chan->last_cdev));
845  AtapiDmaInit__(deviceExtension, LunExt);
846  } else {
847  KdPrint2((PRINT_PREFIX
848  "AtapiDmaReinit: LimitedTransferMode == TransferMode = %x (%x), Device %d, last dev %d\n", LunExt->TransferMode, LunExt->DeviceFlags, LunExt->Lun, LunExt->chan->last_cdev));
849  }
850 
851 exit:
852  return;
853 } // end AtapiDmaReinit()
854 
855 VOID
856 NTAPI
857 AtapiDmaInit__(
858  IN PHW_DEVICE_EXTENSION deviceExtension,
859  IN PHW_LU_EXTENSION LunExt
860  )
861 {
862  if(LunExt->IdentifyData.SupportDma ||
863  (LunExt->IdentifyData.AtapiDMA.DMASupport && (LunExt->DeviceFlags & DFLAGS_ATAPI_DEVICE))) {
864  KdPrint2((PRINT_PREFIX
865  "AtapiDmaInit__: Set (U)DMA on Device %d\n", LunExt->Lun));
866 /* for(i=AtaUmode(&(LunExt->IdentifyData)); i>=0; i--) {
867  AtapiDmaInit(deviceExtension, ldev & 1, ldev >> 1,
868  (CHAR)AtaPioMode(&(LunExt->IdentifyData)),
869  (CHAR)AtaWmode(&(LunExt->IdentifyData)),
870  UDMA_MODE0+(CHAR)i );
871  }
872  for(i=AtaWmode(&(LunExt->IdentifyData)); i>=0; i--) {
873  AtapiDmaInit(deviceExtension, ldev & 1, ldev >> 1,
874  (CHAR)AtaPioMode(&(LunExt->IdentifyData)),
875  (CHAR)AtaWmode(&(LunExt->IdentifyData)),
876  UDMA_MODE0+(CHAR)i );
877  }*/
878  AtapiDmaInit(deviceExtension, LunExt->Lun, LunExt->chan->lChannel,
879  (CHAR)AtaPioMode(&(LunExt->IdentifyData)),
880  (CHAR)AtaWmode(&(LunExt->IdentifyData)),
881  (CHAR)AtaUmode(&(LunExt->IdentifyData)) );
882  } else {
883  KdPrint2((PRINT_PREFIX
884  "AtapiDmaInit__: Set PIO on Device %d\n", LunExt->Lun));
885  AtapiDmaInit(deviceExtension, LunExt->Lun, LunExt->chan->lChannel,
886  (CHAR)AtaPioMode(&(LunExt->IdentifyData)), -1, -1);
887  }
888 } // end AtapiDmaInit__()
889 
890 BOOLEAN
891 NTAPI
892 AtaSetTransferMode(
893  IN PHW_DEVICE_EXTENSION deviceExtension,
894  IN ULONG DeviceNumber,
895  IN ULONG lChannel, // logical channel,
896  IN PHW_LU_EXTENSION LunExt,
897  IN ULONG mode
898  )
899 {
900  KdPrint3((PRINT_PREFIX
901  "AtaSetTransferMode: Set %#x on Device %d/%d\n", mode, lChannel, DeviceNumber));
902  LONG statusByte = 0;
903  CHAR apiomode;
904  BOOLEAN disable_intr = (deviceExtension->HwFlags & UNIATA_AHCI) || (CPU_num>1);
905 /*
906  if(deviceExtension->HwFlags & UNIATA_SATA) {
907  // experimental do nothing, see ROS BUG-9119, v0.46a1
908  statusByte = IDE_STATUS_IDLE;
909  } else */
910  if(LunExt->DeviceFlags & DFLAGS_MANUAL_CHS) {
911  statusByte = mode <= ATA_PIO2 ? IDE_STATUS_IDLE : IDE_STATUS_ERROR;
912  } else {
913  UCHAR umode;
914  if(disable_intr) {
915  AtapiDisableInterrupts(deviceExtension, lChannel);
916  }
917  if(mode > ATA_UDMA6) {
918  // for SATA, it doesn't have option to set transfer rate
919  // We need this just to switch between PIO and DMA modes
920  // Devices may support only some lower transfer rates (e.g. UDMA0-4)
921  umode = min((UCHAR)AtaUmode(&(LunExt->IdentifyData)), 6);
922  umode += ATA_UDMA0;
923  } else {
924  umode = (UCHAR)mode;
925  }
926  statusByte = AtaCommand(deviceExtension, DeviceNumber, lChannel,
927  IDE_COMMAND_SET_FEATURES, 0, 0, 0,
928  (UCHAR)umode, ATA_C_F_SETXFER, ATA_WAIT_BASE_READY);
929  if(disable_intr) {
930  AtapiEnableInterrupts(deviceExtension, lChannel);
931  }
932  }
933  if(statusByte & IDE_STATUS_ERROR) {
934  KdPrint3((PRINT_PREFIX " wait ready after error\n"));
935  if(LunExt->DeviceFlags & DFLAGS_ATAPI_DEVICE) {
936  AtapiStallExecution(10);
937  } else {
938  AtapiStallExecution(100);
939  }
940  apiomode = (CHAR)AtaPioMode(&(LunExt->IdentifyData));
941  if( (apiomode > 0) &&
942  ((CHAR)AtaWmode(&(LunExt->IdentifyData)) > 0) &&
943  ((CHAR)AtaUmode(&(LunExt->IdentifyData)) > 0)
944  ) {
945  return FALSE;
946  }
947  if(mode > ATA_PIO2) {
948  return FALSE;
949  }
950  KdPrint3((PRINT_PREFIX " assume that drive doesn't support mode swithing using PIO%d\n", apiomode));
951  mode = ATA_PIO0 + apiomode;
952  }
953  // SATA sets actual transfer rate in LunExt on init.
954  // There is no run-time SATA rate adjustment yet.
955  // On the other hand, we may turn SATA device in PIO mode
956  LunExt->TransferMode = (UCHAR)mode;
957  if(deviceExtension->HwFlags & UNIATA_SATA) {
958  if(mode < ATA_SA150) {
959  LunExt->PhyTransferMode = max(LunExt->PhyTransferMode, LunExt->TransferMode);
960  } else {
961  LunExt->PhyTransferMode = LunExt->TransferMode;
962  }
963  } else {
964  if(LunExt->DeviceFlags & DFLAGS_ATAPI_DEVICE) {
965  LunExt->PhyTransferMode = max(LunExt->LimitedTransferMode, LunExt->TransferMode);
966  } else {
967  LunExt->PhyTransferMode = LunExt->TransferMode;
968  }
969  }
970  return TRUE;
971 } // end AtaSetTransferMode()
972 
973 VOID
974 NTAPI
975 AtapiDmaInit(
976  IN PVOID HwDeviceExtension,
977  IN ULONG DeviceNumber,
978  IN ULONG lChannel, // logical channel,
979  // is always 0 except simplex-only controllers
980  IN SCHAR apiomode,
981  IN SCHAR wdmamode,
982  IN SCHAR udmamode
983  )
984 {
985  PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
986  ULONG Channel = deviceExtension->Channel + lChannel;
987  PHW_CHANNEL chan = &deviceExtension->chan[lChannel];
988  //LONG statusByte = 0;
989  ULONG dev = Channel*2 + DeviceNumber; // for non-SATA/AHCI only!
990  //ULONG ldev = lChannel*2 + DeviceNumber; // for non-SATA/AHCI only!
991  BOOLEAN isAtapi = ATAPI_DEVICE(chan, DeviceNumber);
992  ULONG slotNumber = deviceExtension->slotNumber;
993  ULONG SystemIoBusNumber = deviceExtension->SystemIoBusNumber;
994  LONG i;
995  PHW_LU_EXTENSION LunExt = chan->lun[DeviceNumber];
996  UCHAR ModeByte;
997 
998  ULONG VendorID = deviceExtension->DevID & 0xffff;
999  //ULONG DeviceID = (deviceExtension->DevID >> 16) & 0xffff;
1000  //ULONG RevID = deviceExtension->RevID;
1001  ULONG ChipType = deviceExtension->HwFlags & CHIPTYPE_MASK;
1002  ULONG ChipFlags = deviceExtension->HwFlags & CHIPFLAG_MASK;
1003 
1004  LONG statusByte = 0;
1005 
1006  //UCHAR *reg_val = NULL;
1007 
1008  LunExt->DeviceFlags &= ~DFLAGS_REINIT_DMA;
1009  /* set our most pessimistic default mode */
1010  LunExt->TransferMode = ATA_PIO;
1011 // if(!deviceExtension->BaseIoAddressBM[lChannel]) {
1012  if(!deviceExtension->BusMaster) {
1013  KdPrint2((PRINT_PREFIX " !deviceExtension->BusMaster: NO DMA\n"));
1014  wdmamode = udmamode = -1;
1015  }
1016 
1017  // Limit transfer mode (controller limitation)
1018  if((LONG)chan->MaxTransferMode >= ATA_UDMA) {
1019  KdPrint2((PRINT_PREFIX "AtapiDmaInit: chan->MaxTransferMode >= ATA_UDMA\n"));
1020  udmamode = min( udmamode, (CHAR)(chan->MaxTransferMode - ATA_UDMA));
1021  } else
1022  if((LONG)chan->MaxTransferMode >= ATA_WDMA) {
1023  KdPrint2((PRINT_PREFIX "AtapiDmaInit: chan->MaxTransferMode >= ATA_WDMA\n"));
1024  udmamode = -1;
1025  wdmamode = min( wdmamode, (CHAR)(chan->MaxTransferMode - ATA_WDMA));
1026  } else
1027  if((LONG)chan->MaxTransferMode >= ATA_PIO0) {
1028  KdPrint2((PRINT_PREFIX "AtapiDmaInit: NO DMA\n"));
1029  wdmamode = udmamode = -1;
1030  apiomode = min( apiomode, (CHAR)(chan->MaxTransferMode - ATA_PIO0));
1031  } else {
1032  KdPrint2((PRINT_PREFIX "AtapiDmaInit: PIO0\n"));
1033  wdmamode = udmamode = -1;
1034  apiomode = 0;
1035  }
1036  // Limit transfer mode (device limitation)
1037  KdPrint2((PRINT_PREFIX "AtapiDmaInit: LunExt->LimitedTransferMode %#x\n", LunExt->LimitedTransferMode));
1038  if((LONG)LunExt->LimitedTransferMode >= ATA_UDMA) {
1039  KdPrint2((PRINT_PREFIX "AtapiDmaInit: LunExt->MaxTransferMode >= ATA_UDMA => %#x\n",
1040  min( udmamode, (CHAR)(LunExt->LimitedTransferMode - ATA_UDMA))
1041  ));
1042  udmamode = min( udmamode, (CHAR)(LunExt->LimitedTransferMode - ATA_UDMA));
1043  } else
1044  if((LONG)LunExt->LimitedTransferMode >= ATA_WDMA) {
1045  KdPrint2((PRINT_PREFIX "AtapiDmaInit: LunExt->MaxTransferMode >= ATA_WDMA => %#x\n",
1046  min( wdmamode, (CHAR)(LunExt->LimitedTransferMode - ATA_WDMA))
1047  ));
1048  udmamode = -1;
1049  wdmamode = min( wdmamode, (CHAR)(LunExt->LimitedTransferMode - ATA_WDMA));
1050  } else
1051  if((LONG)LunExt->LimitedTransferMode >= ATA_PIO0) {
1052  KdPrint2((PRINT_PREFIX "AtapiDmaInit: lun NO DMA\n"));
1053  wdmamode = udmamode = -1;
1054  apiomode = min( apiomode, (CHAR)(LunExt->LimitedTransferMode - ATA_PIO0));
1055  } else {
1056  KdPrint2((PRINT_PREFIX "AtapiDmaInit: lun PIO0\n"));
1057  wdmamode = udmamode = -1;
1058  apiomode = 0;
1059  }
1060 
1061  //if(!(ChipFlags & UNIATA_AHCI)) {
1062 
1063  // this is necessary for future PM support
1064  SelectDrive(chan, DeviceNumber);
1065  GetStatus(chan, statusByte);
1066  // we can see here IDE_STATUS_ERROR status after previous operation
1067  if(statusByte & IDE_STATUS_ERROR) {
1068  KdPrint2((PRINT_PREFIX "IDE_STATUS_ERROR detected on entry, statusByte = %#x\n", statusByte));
1069  //GetBaseStatus(chan, statusByte);
1070  }
1071  if(statusByte && UniataIsIdle(deviceExtension, statusByte & ~IDE_STATUS_ERROR) != IDE_STATUS_IDLE) {
1072  KdPrint2((PRINT_PREFIX "Can't setup transfer mode: statusByte = %#x\n", statusByte));
1073  return;
1074  }
1075  //}
1076 
1077  chan->last_cdev = DeviceNumber;
1078  if(UniataIsSATARangeAvailable(deviceExtension, lChannel) ||
1079  (ChipFlags & UNIATA_AHCI) || (chan->MaxTransferMode >= ATA_SA150)
1080  ) {
1081  //if(ChipFlags & (UNIATA_SATA | UNIATA_AHCI)) {
1082  /****************/
1083  /* SATA Generic */
1084  /****************/
1085 
1086  KdPrint2((PRINT_PREFIX "SATA Generic\n"));
1087 
1088  if((udmamode >= 5) || (ChipFlags & UNIATA_AHCI) || ((udmamode >= 0) && (chan->MaxTransferMode >= ATA_SA150))) {
1089  /* some drives report UDMA6, some UDMA5 */
1090  /* ATAPI may not have SataCapabilities set in IDENTIFY DATA */
1091  if(ata_is_sata(&(LunExt->IdentifyData))) {
1092  //udmamode = min(udmamode, 6);
1093  KdPrint2((PRINT_PREFIX "LunExt->LimitedTransferMode %x, LunExt->OrigTransferMode %x\n",
1094  LunExt->LimitedTransferMode, LunExt->OrigTransferMode));
1095  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, min(LunExt->LimitedTransferMode, LunExt->OrigTransferMode))) {
1096  return;
1097  }
1098  udmamode = min(udmamode, 6);
1099 
1100  } else {
1101  KdPrint2((PRINT_PREFIX "SATA -> PATA adapter ?\n"));
1102  if (udmamode > 2 && (!LunExt->IdentifyData.HwResCableId && (LunExt->IdentifyData.HwResValid == IDENTIFY_CABLE_ID_VALID) )) {
1103  KdPrint2((PRINT_PREFIX "AtapiDmaInit: DMA limited to UDMA33, non-ATA66 compliant cable\n"));
1104  udmamode = 2;
1105  apiomode = min( apiomode, (CHAR)(LunExt->LimitedTransferMode - ATA_PIO0));
1106  } else {
1107  udmamode = min(udmamode, 6);
1108  }
1109  }
1110  }
1111  if(udmamode >= 0) {
1112  ModeByte = ATA_UDMA0 + udmamode;
1113  } else
1114  if(wdmamode >= 0) {
1115  ModeByte = ATA_WDMA0 + wdmamode;
1116  } else
1117  if(apiomode >= 0) {
1118  ModeByte = ATA_PIO0 + apiomode;
1119  } else {
1120  ModeByte = ATA_PIO;
1121  }
1122 
1123  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ModeByte);
1124  return;
1125  }
1126 
1127  if(deviceExtension->UnknownDev) {
1128  KdPrint2((PRINT_PREFIX "Unknown chip, omit Vendor/Dev checks\n"));
1129  goto try_generic_dma;
1130  }
1131 
1132  if(udmamode > 2 && (!LunExt->IdentifyData.HwResCableId && (LunExt->IdentifyData.HwResValid == IDENTIFY_CABLE_ID_VALID)) ) {
1133  if(ata_is_sata(&(LunExt->IdentifyData))) {
1134  KdPrint2((PRINT_PREFIX "AtapiDmaInit: SATA beyond adapter or Controller compat mode\n"));
1135  } else {
1136  KdPrint2((PRINT_PREFIX "AtapiDmaInit: DMA limited to UDMA33, non-ATA66 compliant cable\n"));
1137  udmamode = 2;
1138  apiomode = min( apiomode, (CHAR)(LunExt->LimitedTransferMode - ATA_PIO));
1139  }
1140  }
1141 
1142  KdPrint2((PRINT_PREFIX "Setup chip a:w:u=%d:%d:%d\n",
1143  apiomode,
1144  wdmamode,
1145  udmamode));
1146 
1147  switch(VendorID) {
1148  case ATA_ACARD_ID: {
1149  /*********/
1150  /* Acard */
1151  /*********/
1152  static const USHORT reg4a = 0xa6;
1153  UCHAR reg = 0x40 + (UCHAR)dev;
1154 
1155  if(ChipType == ATPOLD) {
1156  /* Old Acard 850 */
1157  static const USHORT reg4x2 = 0x0301;
1158 
1159  for(i=udmamode; i>=0; i--) {
1160  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA + i)) {
1161 set_old_acard:
1162  ChangePciConfig1(0x54, a | (0x01 << dev) | ((i+1) << (dev*2)));
1163  SetPciConfig1(0x4a, reg4a);
1164  SetPciConfig2(reg, reg4x2);
1165  return;
1166  }
1167 
1168  }
1169  if (wdmamode >= 2 && apiomode >= 4) {
1170  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA2)) {
1171  goto set_old_acard;
1172  }
1173  }
1174  } else {
1175  /* New Acard 86X */
1176  static const UCHAR reg4x = 0x31;
1177 
1178  for(i=udmamode; i>=0; i--) {
1179  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA + i)) {
1180 set_new_acard:
1181  ChangePciConfig2(0x44, (a & ~(0x000f << (dev * 4))) | ((i+1) << (dev*4)));
1182  SetPciConfig1(0x4a, reg4a);
1183  SetPciConfig1(reg, reg4x);
1184  return;
1185  }
1186 
1187  }
1188  if (wdmamode >= 2 && apiomode >= 4) {
1189  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA2)) {
1190  goto set_new_acard;
1191  }
1192  }
1193  }
1194  /* Use GENERIC PIO */
1195  break; }
1196  case ATA_ACER_LABS_ID: {
1197  /************************/
1198  /* Acer Labs Inc. (ALI) */
1199  /************************/
1200  static const UCHAR ali_udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f};
1201  static const ULONG ali_pio[] =
1202  { 0x006d0003, 0x00580002, 0x00440001, 0x00330001,
1203  0x00310001, 0x00440001};
1204  /* the older Aladdin doesn't support ATAPI DMA on both master & slave */
1205  if ((ChipFlags & ALIOLD) &&
1206  (udmamode >= 0 || wdmamode >= 0)) {
1207  if(ATAPI_DEVICE(chan, 0) &&
1208  ATAPI_DEVICE(chan, 1)) {
1209  // 2 devices on this channel - NO DMA
1210  chan->MaxTransferMode =
1211  min(chan->MaxTransferMode, ATA_PIO4);
1212  udmamode = wdmamode = -1;
1213  break;
1214  }
1215  }
1216  for(i=udmamode; i>=0; i--) {
1217  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1218  ULONG word54;
1219 
1220  GetPciConfig4(0x54, word54);
1221  word54 &= ~(0x000f000f << (dev * 4));
1222  word54 |= (((ali_udma[i]<<16) | 5) << (dev * 4));
1223  SetPciConfig4(0x54, word54);
1224  ChangePciConfig1(0x53, a | 0x03);
1225  SetPciConfig4(0x58 + (Channel<<2), 0x00310001);
1226  return;
1227  }
1228  }
1229  /* make sure eventual UDMA mode from the BIOS is disabled */
1230  ChangePciConfig2(0x56, a & ~(0x0008 << (dev * 4)) );
1231  if (wdmamode >= 2 && apiomode >= 4) {
1232  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA2)) {
1233  ChangePciConfig1(0x53, a | 0x03);
1234  chan->ChannelCtrlFlags |= CTRFLAGS_DMA_RO;
1235  return;
1236  }
1237  }
1238  ChangePciConfig1(0x53, (a & ~0x01) | 0x02);
1239 
1240  for(i=apiomode; i>=0; i--) {
1241  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + i)) {
1242  ChangePciConfig4(0x54, a & ~(0x0008000f << (dev * 4)));
1243  SetPciConfig4(0x58 + (Channel<<2), ali_pio[i]);
1244  return;
1245  }
1246  }
1247  return;
1248  break; }
1249  case ATA_AMD_ID:
1250  case ATA_NVIDIA_ID:
1251  case ATA_VIA_ID: {
1252  /********************/
1253  /* AMD, nVidia, VIA */
1254  /********************/
1255  if(VendorID == ATA_VIA_ID) {
1256  if((ChipFlags & VIASATA) &&
1257  (Channel == 0)) {
1258  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_SA150);
1259  return;
1260  }
1261  if((ChipFlags & VIABAR) &&
1262  (Channel < 2)) {
1263  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_SA150);
1264  return;
1265  }
1266  }
1267 
1268  static const UCHAR via_modes[6][7] = {
1269  { 0xc2, 0xc1, 0xc0, 0x00, 0x00, 0x00, 0x00 }, /* ATA33 and New Chips */
1270  { 0xee, 0xec, 0xea, 0xe9, 0xe8, 0x00, 0x00 }, /* ATA66 */
1271  { 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0, 0x00 }, /* ATA100 */
1272  { 0xf7, 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0 }, /* VIA ATA133 */
1273  { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }, /* AMD/nVIDIA */
1274  { 0xee, 0xe8, 0xe6, 0xe4, 0xe2, 0xe1, 0xe0 }}; /* VIA new */
1275  static const UCHAR via_pio[] =
1276  { 0xa8, 0x65, 0x42, 0x22, 0x20, 0x42, 0x22, 0x20,
1277  0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
1278  const UCHAR *reg_val = NULL;
1279  UCHAR reg = 0x53-(UCHAR)dev;
1280  UCHAR reg2 = reg-0x08;
1281 
1282  if(ChipFlags & VIABAR) {
1283  reg = 0xb3;
1284  reg2 = 0xab;
1285  }
1286 
1287  reg_val = &via_modes[ChipType][0];
1288 
1289  if(VendorID == ATA_NVIDIA_ID) {
1290  reg += 0x10;
1291  reg2 += 0x10;
1292  }
1293 
1294  for(i = udmamode; i>=0; i--) {
1295  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1296  SetPciConfig1(reg2, via_pio[8+i]);
1297  SetPciConfig1(reg, (UCHAR)reg_val[i]);
1298  return;
1299  }
1300  }
1301  if(!(ChipFlags & VIABAR)) {
1302  /* This chip can't do WDMA. */
1303  for(i = wdmamode; i>=0; i--) {
1304  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1305  SetPciConfig1(reg2, via_pio[5+i]);
1306  SetPciConfig1(reg, 0x8b);
1307  return;
1308  }
1309  }
1310  }
1311  /* set PIO mode timings */
1312  if((apiomode >= 0) && (ChipType != VIA133)) {
1313  SetPciConfig1(reg2, via_pio[apiomode]);
1314  }
1315  if(VendorID == ATA_VIA_ID /*&& (ChipType == VIA33 || ChipType == VIA66)*/) {
1316  via82c_timing(deviceExtension, dev, ATA_PIO0 + apiomode);
1317  }
1318  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1319  return;
1320 
1321  break; }
1322  case ATA_CYRIX_ID: {
1323  /*********/
1324  /* Cyrix */
1325  /*********/
1326 dma_cs55xx:
1327  if(apiomode >= 4)
1328  apiomode = 4;
1329 
1330  if(ChipType == CYRIX_3x) {
1331 #ifdef __REACTOS__
1332  static const ULONG cyr_piotiming[] =
1333  { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
1334  static const ULONG cyr_wdmatiming[] = { 0x00077771, 0x00012121, 0x00002020 };
1335  static const ULONG cyr_udmatiming[] = { 0x00921250, 0x00911140, 0x00911030 };
1336 #else
1337  ULONG cyr_piotiming[] =
1338  { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
1339  ULONG cyr_wdmatiming[] = { 0x00077771, 0x00012121, 0x00002020 };
1340  ULONG cyr_udmatiming[] = { 0x00921250, 0x00911140, 0x00911030 };
1341 #endif
1342  ULONG mode_reg = 0x24+(dev << 3);
1343 
1344  for(i=udmamode; i>=0; i--) {
1345  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1346  AtapiWritePortEx4(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0), mode_reg, cyr_udmatiming[udmamode]);
1347  return;
1348  }
1349  }
1350  for(i=wdmamode; i>=0; i--) {
1351  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1352  AtapiWritePortEx4(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0), mode_reg, cyr_wdmatiming[wdmamode]);
1353  return;
1354  }
1355  }
1356  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode)) {
1357  AtapiWritePortEx4(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0), mode_reg, cyr_piotiming[apiomode]);
1358  return;
1359  }
1360  } else
1361  if(ChipType == CYRIX_OLD) {
1362 #ifdef __REACTOS__
1363  static const UCHAR cyr_piotiming_old[] = { 11, 6, 3, 2, 1 };
1364 #else
1365  UCHAR cyr_piotiming_old[] =
1366  { 11, 6, 3, 2, 1 };
1367 #endif
1368  UCHAR timing;
1369 
1370  for(i=wdmamode; i>=0; i--) {
1371  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1372  return;
1373  }
1374  }
1375  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode)) {
1376  timing = (6-apiomode) | (cyr_piotiming_old[i]);
1377  /* Channel command timing */
1378  SetPciConfig1(0x62+Channel, timing);
1379  /* Read command timing */
1380  SetPciConfig1(0x64+Channel*4+dev, timing);
1381  /* Write command timing */
1382  SetPciConfig1(0x66+Channel*4+dev, timing);
1383  return;
1384  }
1385  } else
1386  if(ChipType == CYRIX_35) {
1387 /*
1388  USHORT c35_pio_timings[5] = {
1389  0xF7F4, 0xF173, 0x8141, 0x5131, 0x1131
1390  };
1391  USHORT c35_pio_cmd_timings[5] = {
1392  0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131
1393  };
1394  ULONG c35_udma_timings[5] = {
1395  0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061
1396  };
1397  ULONG c35_mwdma_timings[3] = {
1398  0x7F0FFFF3, 0x7F035352, 0x7F024241
1399  };
1400  ULONG mode_reg = 0x24+(dev << 3);
1401 */
1402  /* No MSR support yet, do not touch any regs */
1403  for(i=udmamode; i>=0; i--) {
1404  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1405  return;
1406  }
1407  }
1408  for(i=wdmamode; i>=0; i--) {
1409  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1410  return;
1411  }
1412  }
1413  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode)) {
1414  return;
1415  }
1416  }
1417  return;
1418 
1419  break; }
1420  case ATA_NATIONAL_ID: {
1421  /************/
1422  /* National */
1423  /************/
1424  if(!ChipType) {
1425 #ifdef __REACTOS__
1426  static const ULONG nat_piotiming[] =
1427  { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010, 0x00803020,
1428  0x20102010, 0x00100010, 0x00100010, 0x00100010, 0x00100010 };
1429  static const ULONG nat_dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
1430  static const ULONG nat_udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
1431 #else
1432  ULONG nat_piotiming[] =
1433  { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
1434  0x00803020, 0x20102010, 0x00100010,
1435  0x00100010, 0x00100010, 0x00100010 };
1436  ULONG nat_dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
1437  ULONG nat_udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
1438 #endif
1439 
1440  if(apiomode >= 4)
1441  apiomode = 4;
1442  for(i=udmamode; i>=0; i--) {
1443  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1444  SetPciConfig4(0x44 + (dev * 8), nat_udmatiming[i]);
1445  SetPciConfig4(0x40 + (dev * 8), nat_piotiming[i+8]);
1446  return;
1447  }
1448  }
1449  for(i=wdmamode; i>=0; i--) {
1450  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1451  SetPciConfig4(0x44 + (dev * 8), nat_dmatiming[i]);
1452  SetPciConfig4(0x40 + (dev * 8), nat_piotiming[i+5]);
1453  return;
1454  }
1455  }
1456  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode)) {
1457  ChangePciConfig4(0x44 + (dev * 8), a | 0x80000000);
1458  SetPciConfig4(0x40 + (dev * 8), nat_piotiming[apiomode]);
1459  return;
1460  }
1461  } else {
1462  goto dma_cs55xx;
1463  }
1464  /* Use GENERIC PIO */
1465  break; }
1466  case ATA_CYPRESS_ID:
1467  /***********/
1468  /* Cypress */
1469  /***********/
1470  if (wdmamode >= 2 && apiomode >= 4) {
1471  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA2)) {
1472  SetPciConfig2(Channel ? 0x4e:0x4c, 0x2020);
1473  return;
1474  }
1475  }
1476  /* Use GENERIC PIO */
1477  break;
1478  case ATA_MARVELL_ID:
1479  /***********/
1480  /* Marvell */
1481  /***********/
1482  for(i=udmamode; i>=0; i--) {
1483  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1484  return;
1485  }
1486  }
1487  for(i=wdmamode; i>=0; i--) {
1488  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1489  return;
1490  }
1491  }
1492  /* try generic DMA, use hpt_timing() */
1493  if (wdmamode >= 0 && apiomode >= 4) {
1494  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_DMA)) {
1495  return;
1496  }
1497  }
1498  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1499  return;
1500  break;
1501  case ATA_NETCELL_ID:
1502  /***********/
1503  /* NetCell */
1504  /***********/
1505  if (wdmamode >= 2 && apiomode >= 4) {
1506  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA2)) {
1507  return;
1508  }
1509  }
1510  /* Use GENERIC PIO */
1511  break;
1512  case ATA_HIGHPOINT_ID: {
1513  /********************/
1514  /* High Point (HPT) */
1515  /********************/
1516  for(i=udmamode; i>=0; i--) {
1517  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1518  hpt_timing(deviceExtension, dev, (UCHAR)(ATA_UDMA + i)); // ???
1519  return;
1520  }
1521  }
1522 
1523  for(i=wdmamode; i>=0; i--) {
1524  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1525  hpt_timing(deviceExtension, dev, (UCHAR)(ATA_WDMA0+i));
1526  return;
1527  }
1528  }
1529  /* try generic DMA, use hpt_timing() */
1530  if (wdmamode >= 0 && apiomode >= 4) {
1531  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_DMA)) {
1532  return;
1533  }
1534  }
1535  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1536  hpt_timing(deviceExtension, dev, ATA_PIO0 + apiomode);
1537  return;
1538  break; }
1539  case ATA_INTEL_ID: {
1540  /*********/
1541  /* Intel */
1542  /*********/
1543 
1544  KdPrint2((PRINT_PREFIX "Intel %d\n", Channel));
1545  BOOLEAN udma_ok = FALSE;
1546  ULONG idx = 0;
1547  ULONG reg40;
1548  UCHAR reg44;
1549  USHORT reg48;
1550  USHORT reg4a;
1551  USHORT reg54;
1552  ULONG mask40 = 0;
1553  ULONG new40 = 0;
1554  UCHAR mask44 = 0;
1555  UCHAR new44 = 0;
1556 #ifdef __REACTOS__
1557  static const UCHAR intel_timings[] =
1558  { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
1559  static const UCHAR intel_utimings[] = { 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02 };
1560 #else
1561  UCHAR intel_timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
1562  0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
1563  UCHAR intel_utimings[] = { 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02 };
1564 #endif
1565  const UCHAR needed_pio[3] = {
1566  ATA_PIO0, ATA_PIO3, ATA_PIO4
1567  };
1568 
1569  if(deviceExtension->DevID == ATA_I82371FB) {
1570  KdPrint2((PRINT_PREFIX " I82371FB\n"));
1571  USHORT reg4x;
1572  USHORT control=0;
1573  for(i=wdmamode; i>=0; i--) {
1574  idx = 5+i;
1575  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1576  udma_ok = TRUE;
1577  break;
1578  }
1579  }
1580  if(!udma_ok) {
1581  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1582  idx = apiomode;
1583  } else {
1584  /* If the drive MWDMA is faster than it can do PIO then
1585  we must force PIO into PIO0 */
1586  if (apiomode < needed_pio[wdmamode]) {
1587  /* Enable DMA timing only */
1588  control |= 8; /* PIO cycles in PIO0 */
1589  }
1590  }
1591  GetPciConfig2(0x40+Channel*2, reg4x);
1592  if(apiomode > ATA_PIO0) {
1593  control |= 0x03; /* IORDY|TIME0 */
1594  } else {
1595  control |= 0x02; /* IORDY */
1596  }
1597  // if (ata_pio_need_iordy(adev))
1598  //control |= 2; /* IE */
1599  if (!isAtapi) {
1600  control |= 4; /* PPE enable */
1601  }
1602  /* Mask out the relevant control and timing bits we will load. Also
1603  clear the other drive TIME register as a precaution */
1604  reg4x &= 0xCC00 | (0x0E << (DeviceNumber*4));
1605  reg4x |= control << (DeviceNumber*4);
1606  reg4x |= intel_timings[idx] << 8;
1607  SetPciConfig2(0x40+Channel*2, reg4x);
1608  return;
1609  }
1610 
1611  if(deviceExtension->DevID == ATA_ISCH) {
1612  ULONG tim;
1613  KdPrint2((PRINT_PREFIX " ISCH\n"));
1614  GetPciConfig4(0x80 + dev*4, tim);
1615 
1616  for(i=udmamode; i>=0; i--) {
1617  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1618  tim |= (0x1 << 31);
1619  tim &= ~(0x7 << 16);
1620  tim |= (i << 16);
1621 
1622  idx = i+8;
1623  udma_ok = TRUE;
1624  apiomode = ATA_PIO4;
1625  break;
1626  }
1627  }
1628  if(!udma_ok) {
1629  for(i=wdmamode; i>=0; i--) {
1630  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1631  tim &= ~(0x1 << 31);
1632  tim &= ~(0x3 << 8);
1633  tim |= (i << 8);
1634 
1635  idx = i+5;
1636  udma_ok = TRUE;
1637  apiomode = (i == 0) ? ATA_PIO0 :
1638  (i == 1) ? ATA_PIO3 : ATA_PIO4;
1639  break;
1640  }
1641  }
1642  }
1643  if(!udma_ok) {
1644  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1645  idx = apiomode;
1646  }
1647  tim &= ~(0x7);
1648  tim |= (apiomode & 0x7);
1649  SetPciConfig4(0x80 + dev*4, tim);
1650 
1651  return;
1652  }
1653 
1654  GetPciConfig2(0x48, reg48);
1655 // if(!(ChipFlags & ICH4_FIX)) {
1656  GetPciConfig2(0x4a, reg4a);
1657 // }
1658  GetPciConfig2(0x54, reg54);
1659 // if(udmamode >= 0) {
1660  // enable the write buffer to be used in a split (ping/pong) manner.
1661  reg54 |= 0x400;
1662 // } else {
1663 // reg54 &= ~0x400;
1664 // }
1665 
1666 // reg40 &= ~0x00ff00ff;
1667 // reg40 |= 0x40774077;
1668 
1669  for(i=udmamode; i>=0; i--) {
1670  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1671 
1672  /* Set UDMA reference clock (33 MHz or more). */
1673  SetPciConfig1(0x48, reg48 | (0x0001 << dev));
1674 // if(!(ChipFlags & ICH4_FIX)) {
1675  if(deviceExtension->MaxTransferMode == ATA_UDMA3) {
1676  // Special case (undocumented overclock !) for PIIX4e
1677  SetPciConfig2(0x4a, (reg4a | (0x03 << (dev<<2)) ) );
1678  } else {
1679  SetPciConfig2(0x4a, (reg4a & ~(0x03 << (dev<<2))) |
1680  (((USHORT)(intel_utimings[i])) << (dev<<2) ) );
1681  }
1682 // }
1683  /* Set UDMA reference clock (66 MHz or more). */
1684  reg54 &= ~(0x1001 << dev);
1685  if(i > 2) {
1686  reg54 |= (0x1 << dev);
1687  }
1688  /* Set UDMA reference clock (133 MHz). */
1689  if(i >= 5) {
1690  reg54 |= (0x1000 << dev);
1691  }
1692  SetPciConfig2(0x54, reg54);
1693 
1694  udma_ok = TRUE;
1695  idx = i+8;
1696  if(ChipFlags & ICH4_FIX) {
1697  KdPrint2((PRINT_PREFIX " ICH4_FIX udma\n"));
1698  return;
1699  }
1700  break;
1701  }
1702  }
1703 
1704  if(!udma_ok) {
1705  SetPciConfig1(0x48, reg48 & ~(0x0001 << dev));
1706  if(!(ChipFlags & ICH4_FIX)) {
1707  SetPciConfig2(0x4a, (reg4a & ~(0x3 << (dev << 2))) );
1708  }
1709  SetPciConfig2(0x54, reg54 & ~(0x1001 << dev));
1710  for(i=wdmamode; i>=0; i--) {
1711  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1712  udma_ok = TRUE;
1713  idx = i+5;
1714  if(ChipFlags & ICH4_FIX) {
1715  KdPrint2((PRINT_PREFIX " ICH4_FIX wdma\n"));
1716  return;
1717  }
1718  break;
1719  }
1720  }
1721  }
1722 
1723  if(!udma_ok) {
1724  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1725  idx = apiomode;
1726  }
1727 
1728  GetPciConfig4(0x40, reg40);
1729  GetPciConfig1(0x44, reg44);
1730 
1731  /* Allow PIO/WDMA timing controls. */
1732  reg40 &= ~0x00ff00ff;
1733  reg40 |= 0x40774077;
1734 
1735  mask40 = 0x000000ff;
1736  /* Set PIO/WDMA timings. */
1737  if(!(DeviceNumber & 1)) {
1738  mask40 = 0x00003300;
1739  new40 = ((USHORT)(intel_timings[idx]) << 8);
1740  } else {
1741  mask44 = 0x0f;
1742  new44 = ((intel_timings[idx] & 0x30) >> 2) |
1743  (intel_timings[idx] & 0x03);
1744  }
1745 
1746  if (Channel) {
1747  mask40 <<= 16;
1748  new40 <<= 16;
1749  mask44 <<= 4;
1750  new44 <<= 4;
1751  }
1752 
1753  KdPrint2((PRINT_PREFIX " 0x40 %x/%x, 0x44 %x/%x\n", mask40, new40, mask44, new44));
1754  SetPciConfig4(0x40, (reg40 & ~mask40) | new40);
1755  SetPciConfig1(0x44, (reg44 & ~mask44) | new44);
1756 
1757  return;
1758  break; }
1759  case ATA_PROMISE_ID: {
1760  /***********/
1761  /* Promise */
1762  /***********/
1763 
1764  UCHAR sel66 = Channel ? 0x08: 0x02;
1765 
1766  if(ChipType < PRTX) {
1767  if (isAtapi) {
1768  udmamode =
1769  wdmamode = -1;
1770  }
1771  }
1772  for(i=udmamode; i>=0; i--) {
1773 
1774  if(ChipType == PRNEW) {
1775  if(i>2) {
1776  AtapiWritePortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11,
1777  AtapiReadPortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11) |
1778  sel66);
1779  } else {
1780  AtapiWritePortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11,
1781  AtapiReadPortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11) &
1782  ~sel66);
1783  }
1784  }
1785 
1786  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1787  promise_timing(deviceExtension, dev, (UCHAR)(ATA_UDMA + i)); // ???
1788  return;
1789  }
1790  }
1791  if(ChipType == PRNEW) {
1792  AtapiWritePortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11,
1793  AtapiReadPortEx1(chan, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),0x11) &
1794  ~sel66);
1795  }
1796  for(i=wdmamode; i>=0; i--) {
1797  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1798  promise_timing(deviceExtension, dev, (UCHAR)(ATA_WDMA0+i));
1799  return;
1800  }
1801  }
1802  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1803  promise_timing(deviceExtension, dev, ATA_PIO0 + apiomode);
1804  return;
1805  break; }
1806  case ATA_ATI_ID:
1807 
1808  KdPrint2((PRINT_PREFIX "ATI\n"));
1809  if(ChipType == SIIMIO) {
1810  goto l_ATA_SILICON_IMAGE_ID;
1811  }
1812  //goto ATA_SERVERWORKS_ID;
1813  // FALL THROUGH
1814 
1815  //break; }
1816 
1817  case ATA_SERVERWORKS_ID: {
1818  /***************/
1819  /* ServerWorks */
1820  /***************/
1821 // static const ULONG udma_modes[] = { 0x70, 0x21, 0x20 };
1822  static const ULONG sw_dma_modes[] = { 0x70, 0x21, 0x20 };
1823  static const ULONG sw_pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
1824  0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
1825  USHORT reg56;
1826  ULONG reg44;
1827  ULONG reg40;
1828  ULONG offset = dev ^ 0x01;
1829  ULONG bit_offset = offset * 8;
1830 
1831  for(i=udmamode; i>=0; i--) {
1832  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1833  GetPciConfig2(0x56, reg56);
1834  reg56 &= ~(0xf << (dev * 4));
1835  reg56 |= ((USHORT)i << (dev * 4));
1836  SetPciConfig2(0x56, reg56);
1837  ChangePciConfig1(0x54, a | (0x01 << dev));
1838  // 44
1839  GetPciConfig4(0x44, reg44);
1840  reg44 = (reg44 & ~(0xff << bit_offset)) |
1841  (sw_dma_modes[2] << bit_offset);
1842  SetPciConfig4(0x44, reg44);
1843  // 40
1844  GetPciConfig4(0x40, reg40);
1845  reg40 = (reg40 & ~(0xff << bit_offset)) |
1846  (sw_pio_modes[8+i] << bit_offset);
1847  SetPciConfig4(0x40, reg40);
1848  return;
1849  }
1850  }
1851 
1852  for(i=wdmamode; i>=0; i--) {
1853  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1854 
1855  ChangePciConfig1(0x54, a & ~(0x01 << dev));
1856  // 44
1857  GetPciConfig4(0x44, reg44);
1858  reg44 = (reg44 & ~(0xff << bit_offset)) |
1859  (sw_dma_modes[wdmamode] << bit_offset);
1860  SetPciConfig4(0x44, reg44);
1861  // 40
1862  GetPciConfig4(0x40, reg40);
1863  reg40 = (reg40 & ~(0xff << bit_offset)) |
1864  (sw_pio_modes[5+i] << bit_offset);
1865  SetPciConfig4(0x40, reg40);
1866  return;
1867  }
1868  }
1869  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1870 // SetPciConfig4(0x44, sw_pio_modes[apiomode]);
1871  if(VendorID == ATA_ATI_ID) {
1872  // special case for ATI
1873  // Seems, that PATA ATI are just re-brended ServerWorks
1874  USHORT reg4a;
1875  // 4a
1876  GetPciConfig2(0x4a, reg4a);
1877  reg4a = (reg4a & ~(0xf << (dev*4))) |
1878  (apiomode << (dev*4));
1879  SetPciConfig2(0x4a, reg4a);
1880  }
1881 
1882  // 40
1883  GetPciConfig4(0x40, reg40);
1884  reg40 = (reg40 & ~(0xff << bit_offset)) |
1885  (sw_pio_modes[apiomode] << bit_offset);
1886  SetPciConfig4(0x40, reg40);
1887  return;
1888  break; }
1889  case ATA_SILICON_IMAGE_ID: {
1890 l_ATA_SILICON_IMAGE_ID:
1891  /********************/
1892  /* SiliconImage/CMD */
1893  /********************/
1894  if(ChipType == SIIMIO) {
1895 
1896  static const UCHAR sil_modes[7] =
1897  { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
1898  static const USHORT sil_wdma_modes[3] =
1899  { 0x2208, 0x10c2, 0x10c1 };
1900  static const USHORT sil_pio_modes[6] =
1901  { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1, 0x10c1 };
1902 
1903  UCHAR ureg = 0xac + ((UCHAR)DeviceNumber * 0x02) + ((UCHAR)Channel * 0x10);
1904  UCHAR uval;
1905  UCHAR mreg = Channel ? 0x84 : 0x80;
1906  UCHAR mask = DeviceNumber ? 0x30 : 0x03;
1907  UCHAR mode;
1908 
1909  GetPciConfig1(ureg, uval);
1910  GetPciConfig1(mreg, mode);
1911 
1912  /* enable UDMA mode */
1913  for(i = udmamode; i>=0; i--) {
1914 
1915  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1916  SetPciConfig1(mreg, mode | mask);
1917  SetPciConfig1(ureg, (uval & 0x3f) | sil_modes[i]);
1918  return;
1919  }
1920  }
1921  /* enable WDMA mode */
1922  for(i = wdmamode; i>=0; i--) {
1923 
1924  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1925  SetPciConfig1(mreg, mode | (mask & 0x22));
1926  SetPciConfig2(ureg - 0x4, sil_wdma_modes[i]);
1927  return;
1928  }
1929  }
1930  /* restore PIO mode */
1931  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1932 
1933  SetPciConfig1(mreg, mode | (mask & 0x11));
1934  SetPciConfig2(ureg - 0x8, sil_pio_modes[apiomode]);
1935  return;
1936 
1937  } else {
1938 
1939  static const UCHAR cmd_modes[2][6] = {
1940  { 0x31, 0x21, 0x011, 0x25, 0x15, 0x05 },
1941  { 0xc2, 0x82, 0x042, 0x8a, 0x4a, 0x0a } };
1942  static const UCHAR cmd_wdma_modes[] = { 0x87, 0x32, 0x3f };
1943  static const UCHAR cmd_pio_modes[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f };
1944  ULONG treg = 0x54 + ((dev < 3) ? (dev << 1) : 7);
1945 
1946  udmamode = min(udmamode, 5);
1947  /* enable UDMA mode */
1948  for(i = udmamode; i>=0; i--) {
1949  UCHAR umode;
1950 
1951  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
1952  GetPciConfig1(Channel ? 0x7b : 0x73, umode);
1953  umode &= ~(!(DeviceNumber & 1) ? 0x35 : 0xca);
1954  umode |= ( cmd_modes[DeviceNumber & 1][i]);
1955  SetPciConfig1(Channel ? 0x7b : 0x73, umode);
1956  return;
1957  }
1958  }
1959  /* make sure eventual UDMA mode from the BIOS is disabled */
1960  ChangePciConfig1(Channel ? 0x7b : 0x73, a & ~(!(DeviceNumber & 1) ? 0x35 : 0xca));
1961 
1962  for(i = wdmamode; i>=0; i--) {
1963 
1964  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
1965  SetPciConfig1(treg, cmd_wdma_modes[i]);
1966  ChangePciConfig1(Channel ? 0x7b : 0x73, a & ~(!(DeviceNumber & 1) ? 0x35 : 0xca));
1967  return;
1968  }
1969  }
1970  /* set PIO mode timings */
1971  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
1972 
1973  SetPciConfig1(treg, cmd_pio_modes[apiomode]);
1974  ChangePciConfig1(Channel ? 0x7b : 0x73, a & ~(!(DeviceNumber & 1) ? 0x35 : 0xca));
1975  return;
1976 
1977  }
1978  return;
1979  break; }
1980  case ATA_SIS_ID: {
1981  /*******/
1982  /* SiS */
1983  /*******/
1984  PULONG sis_modes = NULL;
1985  static const ULONG sis_modes_new133[] =
1986  { 0x28269008, 0x0c266008, 0x04263008, 0x0c0a3008, 0x05093008,
1987  0x22196008, 0x0c0a3008, 0x05093008, 0x050939fc, 0x050936ac,
1988  0x0509347c, 0x0509325c, 0x0509323c, 0x0509322c, 0x0509321c};
1989  static const ULONG sis_modes_old133[] =
1990  { 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033, 0x0031,
1991  0x8f31, 0x8a31, 0x8731, 0x8531, 0x8331, 0x8231, 0x8131 };
1992  static const ULONG sis_modes_old[] =
1993  { 0x0c0b, 0x0607, 0x0404, 0x0303, 0x0301, 0x0404, 0x0303, 0x0301,
1994  0xf301, 0xd301, 0xb301, 0xa301, 0x9301, 0x8301 };
1995  static const ULONG sis_modes_new100[] =
1996  { 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033, 0x0031,
1997  0x8b31, 0x8731, 0x8531, 0x8431, 0x8231, 0x8131 };
1998 
1999  ULONG reg = 0;
2000  UCHAR reg57;
2001  ULONG reg_size = 0;
2002  ULONG offs;
2003 
2004  switch(ChipType) {
2005  case SIS133NEW:
2006  sis_modes = (PULONG)(&sis_modes_new133[0]);
2007  reg_size = 4;
2008  GetPciConfig1(0x57, reg57);
2009  reg = (reg57 & 0x40 ? 0x70 : 0x40) + (dev * 4);
2010  break;
2011  case SIS133OLD:
2012  sis_modes = (PULONG)(&sis_modes_old133[0]);
2013  reg_size = 2;
2014  reg = 0x40 + (dev * 2);
2015  break;
2016  case SIS100NEW:
2017  sis_modes = (PULONG)(&sis_modes_new100[0]);
2018  reg_size = 2;
2019  reg = 0x40 + (dev * 2);
2020  break;
2021  case SIS100OLD:
2022  case SIS66:
2023  case SIS33:
2024  sis_modes = (PULONG)(&sis_modes_old[0]);
2025  reg_size = 2;
2026  reg = 0x40 + (dev * 2);
2027  break;
2028  }
2029 
2030  offs = 5+3;
2031  for(i=udmamode; i>=0; i--) {
2032  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
2033  if(reg_size == 4) {
2034  SetPciConfig4(reg, sis_modes[offs+i]);
2035  } else {
2036  SetPciConfig2(reg, (USHORT)sis_modes[offs+i]);
2037  }
2038  return;
2039  }
2040  }
2041 
2042  offs = 5;
2043  for(i=wdmamode; i>=0; i--) {
2044  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
2045  if(reg_size == 4) {
2046  SetPciConfig4(reg, sis_modes[offs+i]);
2047  } else {
2048  SetPciConfig2(reg, (USHORT)sis_modes[offs+i]);
2049  }
2050  return;
2051  }
2052  }
2053  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
2054  if(reg_size == 4) {
2055  SetPciConfig4(reg, sis_modes[apiomode]);
2056  } else {
2057  SetPciConfig2(reg, (USHORT)sis_modes[apiomode]);
2058  }
2059  return;
2060  break; }
2061  case 0x16ca:
2062  /* Cenatek Rocket Drive controller */
2063  if (wdmamode >= 0 &&
2064  (AtapiReadPort1(chan, IDX_BM_Status) &
2065  (DeviceNumber ? BM_STATUS_DRIVE_1_DMA : BM_STATUS_DRIVE_0_DMA))) {
2066  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + wdmamode);
2067  } else {
2068  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
2069  }
2070  return;
2071  case ATA_ITE_ID: { /* ITE IDE controller */
2072 
2073  if(ChipType == ITE_33) {
2074  int a_speed = 3 << (dev * 4);
2075  int u_flag = 1 << dev;
2076  int u_speed = 0;
2077  int pio = 1;
2078  UCHAR reg48, reg4a;
2079  USHORT drive_enables;
2080  ULONG drive_timing;
2081 
2082  GetPciConfig1(0x48, reg48);
2083  GetPciConfig1(0x4a, reg4a);
2084 
2085  /*
2086  * Setting the DMA cycle time to 2 or 3 PCI clocks (60 and 91 nsec
2087  * at 33 MHz PCI clock) seems to cause BadCRC errors during DMA
2088  * transfers on some drives, even though both numbers meet the minimum
2089  * ATAPI-4 spec of 73 and 54 nsec for UDMA 1 and 2 respectively.
2090  * So the faster times are just commented out here. The good news is
2091  * that the slower cycle time has very little affect on transfer
2092  * performance.
2093  */
2094 
2095  for(i=udmamode; i>=0; i--) {
2096  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
2097  SetPciConfig1(0x48, reg48 | u_flag);
2098  reg4a &= ~a_speed;
2099  SetPciConfig1(0x4a, reg4a | u_speed);
2100  pio = 4;
2101  goto setup_drive_ite;
2102  }
2103  }
2104 
2105  for(i=wdmamode; i>=0; i--) {
2106  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
2107  SetPciConfig1(0x48, reg48 & ~u_flag);
2108  SetPciConfig1(0x4a, reg4a & ~a_speed);
2109  pio = 3;
2110  return;
2111  }
2112  }
2113  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
2114  SetPciConfig1(0x48, reg48 & ~u_flag);
2115  SetPciConfig1(0x4a, reg4a & ~a_speed);
2116 
2117  pio = apiomode;
2118 
2119 setup_drive_ite:
2120 
2121  GetPciConfig2(0x40, drive_enables);
2122  GetPciConfig4(0x44, drive_timing);
2123 
2124  /*
2125  * FIX! The DIOR/DIOW pulse width and recovery times in port 0x44
2126  * are being left at the default values of 8 PCI clocks (242 nsec
2127  * for a 33 MHz clock). These can be safely shortened at higher
2128  * PIO modes. The DIOR/DIOW pulse width and recovery times only
2129  * apply to PIO modes, not to the DMA modes.
2130  */
2131 
2132  /*
2133  * Enable port 0x44. The IT8172G spec is confused; it calls
2134  * this register the "Slave IDE Timing Register", but in fact,
2135  * it controls timing for both master and slave drives.
2136  */
2137  drive_enables |= 0x4000;
2138 
2139  drive_enables &= (0xc000 | (0x06 << (DeviceNumber*4)));
2140  if (pio > 1) {
2141  /* enable prefetch and IORDY sample-point */
2142  drive_enables |= (0x06 << (DeviceNumber*4));
2143  }
2144 
2145  SetPciConfig2(0x40, drive_enables);
2146  } else
2147  if(ChipType == ITE_133) {
2148  static const UCHAR udmatiming[] =
2149  { 0x44, 0x42, 0x31, 0x21, 0x11, 0xa2, 0x91 };
2150  static const UCHAR chtiming[] =
2151  { 0xaa, 0xa3, 0xa1, 0x33, 0x31, 0x88, 0x32, 0x31 };
2152  ULONG offset = (Channel<<2) + DeviceNumber;
2153  UCHAR reg54;
2154 
2155  for(i=udmamode; i>=0; i--) {
2156  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
2157  ChangePciConfig1(0x50, a & ~(1 << (dev + 3)) );
2158  SetPciConfig1(0x56 + offset, udmatiming[i]);
2159  return;
2160  }
2161  }
2162 
2163  for(i=wdmamode; i>=0; i--) {
2164  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
2165 
2166  ChangePciConfig1(0x50, a | (1 << (dev + 3)) );
2167  GetPciConfig1(0x54 + offset, reg54);
2168  if(reg54 < chtiming[i+5]) {
2169  SetPciConfig1(0x54 + offset, chtiming[i+5]);
2170  }
2171  return;
2172  }
2173  }
2174  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
2175  ChangePciConfig1(0x50, a | (1 << (dev + 3)) );
2176  GetPciConfig1(0x54 + offset, reg54);
2177  if(reg54 < chtiming[apiomode]) {
2178  SetPciConfig1(0x54 + offset, chtiming[apiomode]);
2179  }
2180  return;
2181  } else
2182  if(ChipType == ITE_133_NEW) {
2183  //static const USHORT reg54_timings[] = { 0x0000, 0x0000, 0x0001, 0x0001, 0x0001, 0x1001, 0x1001 };
2184  static const UCHAR udmatiming[] =
2185  { 0x00, 0x01, 0x10, 0x01, 0x10, 0x01, 0x10 };
2186  static const UCHAR timings[] =
2187  { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
2188  0x23, 0x23, 0x23, 0x23, 0x23, 0x02, 0x02 };
2189  BOOLEAN udma_ok = FALSE;
2190  BOOLEAN ok = FALSE;
2191  UCHAR timing = 0;
2192 
2193  WCHAR reg40;
2194  UCHAR reg44;
2195  USHORT reg4a;
2196  USHORT reg54;
2197  USHORT mask40=0, new40=0;
2198  UCHAR mask44=0, new44=0;
2199 
2200  GetPciConfig2(0x40, reg40);
2201  GetPciConfig1(0x44, reg44);
2202  GetPciConfig2(0x4a, reg4a);
2203  GetPciConfig2(0x54, reg54);
2204 
2205  if(!(reg54 & (0x10 << dev))) {
2206  // 80-pin check
2207  udmamode = min(udmamode, 2);
2208  }
2209 
2210  for(i=udmamode; i>=0; i--) {
2211  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
2212  ChangePciConfig1(0x48, a | (1 << dev) );
2213  ChangePciConfig2(0x4a,
2214  (a & ~(0x3 << (dev*4))) |
2215  (udmatiming[i] << (dev*4)) );
2216  ok=TRUE;
2217  udma_ok=TRUE;
2218  timing = timings[i+8];
2219  break;
2220  }
2221  }
2222 
2223  for(i=wdmamode; !ok && i>=0; i--) {
2224  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
2225 
2226  ok=TRUE;
2227  timing = timings[i+5];
2228  break;
2229  }
2230  }
2231 
2232  if(!ok) {
2233  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
2234  timing = timings[apiomode];
2235  }
2236 
2237  if(!udma_ok) {
2238  ChangePciConfig1(0x48, a & ~(1 << dev) );
2239  ChangePciConfig2(0x4a, a & ~(0x3 << (dev << 2)) );
2240  }
2241  if (udma_ok && udmamode >= ATA_UDMA2) {
2242  reg54 |= (0x1 << dev);
2243  } else {
2244  reg54 &= ~(0x1 << dev);
2245  }
2246  if (udma_ok && udmamode >= ATA_UDMA5) {
2247  reg54 |= (0x1000 << dev);
2248  } else {
2249  reg54 &= ~(0x1000 << dev);
2250  }
2251  SetPciConfig2(0x54, reg54 );
2252 
2253  reg40 &= 0xff00;
2254  reg40 |= 0x4033;
2255 
2256  if(!(DeviceNumber & 1)) {
2257  reg40 |= (isAtapi ? 0x04 : 0x00);
2258  mask40 = 0x3300;
2259  new40 = timing << 8;
2260  } else {
2261  reg40 |= (isAtapi ? 0x40 : 0x00);
2262  mask44 = 0x0f;
2263  new44 = ((timing & 0x30) >> 2) |
2264  (timing & 0x03);
2265  }
2266  SetPciConfig2(0x40, (reg40 & ~mask40) | new40);
2267  SetPciConfig1(0x44, (reg44 & ~mask44) | new44);
2268  return;
2269  }
2270 
2271  return;
2272  break; }
2273  case 0x3388:
2274  /* HiNT Corp. VXPro II EIDE */
2275  if (wdmamode >= 0 &&
2276  (AtapiReadPort1(chan, IDX_BM_Status) &
2277  (DeviceNumber ? BM_STATUS_DRIVE_1_DMA : BM_STATUS_DRIVE_0_DMA))) {
2278  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_DMA);
2279  } else {
2280  AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode);
2281  }
2282  return;
2283  case ATA_JMICRON_ID: {
2284 
2285  UCHAR reg40;
2286  GetPciConfig1(0x40, reg40);
2287 
2288  /*
2289  This is done on chip-init phase
2290  if(reg40 & 0x08) {
2291  // 80-pin check
2292  udmamode = min(udmamode, 2);
2293  }
2294  */
2295  /* Nothing to do to setup mode, the controller snoop SET_FEATURE cmd. */
2296  if(apiomode >= 4)
2297  apiomode = 4;
2298  for(i=udmamode; i>=0; i--) {
2299  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_UDMA0 + i)) {
2300  return;
2301  }
2302  }
2303  for(i=wdmamode; i>=0; i--) {
2304  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_WDMA0 + i)) {
2305  return;
2306  }
2307  }
2308  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode)) {
2309  return;
2310  }
2311  return;
2312  break; }
2313  }
2314 
2315 try_generic_dma:
2316 
2317  /* unknown controller chip */
2318 
2319  /* better not try generic DMA on ATAPI devices it almost never works */
2320  if (isAtapi) {
2321  KdPrint2((PRINT_PREFIX "ATAPI on unknown controller -> PIO\n"));
2322  udmamode =
2323  wdmamode = -1;
2324  }
2325 
2326  /* if controller says its setup for DMA take the easy way out */
2327  /* the downside is we dont know what DMA mode we are in */
2328  if ((udmamode >= 0 || /*wdmamode > 1*/ wdmamode >= 0) &&
2329  /*deviceExtension->BaseIoAddressBM[lChannel]*/ (deviceExtension->BusMaster==DMA_MODE_BM) &&
2330  (GetDmaStatus(deviceExtension, lChannel) &
2331  (!(DeviceNumber & 1) ?
2332  BM_STATUS_DRIVE_0_DMA : BM_STATUS_DRIVE_1_DMA))) {
2333 // LunExt->TransferMode = ATA_DMA;
2334 // return;
2335  KdPrint2((PRINT_PREFIX "try DMA on unknown controller\n"));
2336  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_DMA)) {
2337  return;
2338  }
2339  }
2340 
2341 #if 0
2342  /* well, we have no support for this, but try anyways */
2343  if ((wdmamode >= 0 && apiomode >= 4) && deviceExtension->BaseIoAddressBM[lChannel]) {
2344  if(AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_DMA/* + wdmamode*/)) {
2345  return;
2346  }
2347  }
2348 #endif
2349 
2350  KdPrint2((PRINT_PREFIX "try PIO%d on unknown controller\n", apiomode));
2351  if(!AtaSetTransferMode(deviceExtension, DeviceNumber, lChannel, LunExt, ATA_PIO0 + apiomode)) {
2352  KdPrint2((PRINT_PREFIX "fall to PIO on unknown controller\n"));
2353  LunExt->TransferMode = ATA_PIO;
2354  }
2355  return;
2356 } // end AtapiDmaInit()
2357 
2358 
2359 VOID
2360 NTAPI
2361 cyrix_timing(
2362  IN PHW_DEVICE_EXTENSION deviceExtension,
2363  IN ULONG dev, // physical device number (0-3)
2364  IN CHAR mode
2365  )
2366 {
2367 // ASSERT(dev/2 >= deviceExtension->Channel);
2368 // PHW_CHANNEL chan = &(deviceExtension->chan[dev/2-deviceExtension->Channel]);
2369  ULONG reg20 = 0x0000e132;
2370  ULONG reg24 = 0x00017771;
2371 
2372  if(mode == ATA_PIO5)
2373  mode = ATA_PIO4;
2374 
2375  switch (mode) {
2376  case ATA_PIO0: reg20 = 0x0000e132; break;
2377  case ATA_PIO1: reg20 = 0x00018121; break;
2378  case ATA_PIO2: reg20 = 0x00024020; break;
2379  case ATA_PIO3: reg20 = 0x00032010; break;
2380  case ATA_PIO4:
2381  case ATA_PIO5: reg20 = 0x00040010; break;
2382  case ATA_WDMA2: reg24 = 0x00002020; break;
2383  case ATA_UDMA2: reg24 = 0x00911030; break;
2384  }
2385  AtapiWritePortEx4(NULL, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),(dev*8) + 0x20, reg20);
2386  AtapiWritePortEx4(NULL, (ULONGIO_PTR)(&deviceExtension->BaseIoAddressBM_0),(dev*8) + 0x24, reg24);
2387 } // cyrix_timing()
2388 
2389 VOID
2390 NTAPI
2391 promise_timing(
2392  IN PHW_DEVICE_EXTENSION deviceExtension,
2393  IN ULONG dev, // physical device number (0-3)
2394  IN CHAR mode
2395  )
2396 {
2397  PVOID HwDeviceExtension = (PVOID)deviceExtension;
2398  ULONG slotNumber = deviceExtension->slotNumber;
2399  ULONG SystemIoBusNumber = deviceExtension->SystemIoBusNumber;
2400 
2401  //ULONG ChipFlags = deviceExtension->HwFlags & CHIPFLAG_MASK;
2402 
2403  ULONG port = 0x60 + (dev<<2);
2404 
2405  if(mode == ATA_PIO5)
2406  mode = ATA_PIO4;
2407 
2408  if(mode < ATA_PIO0)
2409  mode = ATA_PIO0;
2410 
2411 #if 0
2412 // **** FreeBSD code ****
2413 
2414  ULONG ChipType = deviceExtension->HwFlags & CHIPTYPE_MASK;
2415  ULONG timing = 0;
2416 
2417  switch(ChipType) {
2418  case PROLD:
2419  switch (mode) {
2420  default:
2421  case ATA_PIO0: timing = 0x004ff329; break;
2422  case ATA_PIO1: timing = 0x004fec25; break;
2423  case ATA_PIO2: timing = 0x004fe823; break;
2424  case ATA_PIO3: timing = 0x004fe622; break;
2425  case ATA_PIO4: timing = 0x004fe421; break;
2426  case ATA_WDMA0: timing = 0x004567f3; break;
2427  case ATA_WDMA1: timing = 0x004467f3; break;
2428  case ATA_WDMA2: timing = 0x004367f3; break;
2429  case ATA_UDMA0: timing = 0x004367f3; break;
2430  case ATA_UDMA1: timing = 0x004247f3; break;
2431  case ATA_UDMA2: timing = 0x004127f3; break;
2432  }
2433  break;
2434 
2435  case PRNEW:
2436  switch (mode) {
2437  default:
2438  case ATA_PIO0: timing = 0x004fff2f; break;
2439  case ATA_PIO1: timing = 0x004ff82a; break;
2440  case ATA_PIO2: timing = 0x004ff026; break;
2441  case ATA_PIO3: timing = 0x004fec24; break;
2442  case ATA_PIO4: timing = 0x004fe822; break;
2443  case ATA_WDMA0: timing = 0x004acef6; break;
2444  case ATA_WDMA1: timing = 0x0048cef6; break;
2445  case ATA_WDMA2: timing = 0x0046cef6; break;
2446  case ATA_UDMA0: timing = 0x0046cef6; break;
2447  case ATA_UDMA1: timing = 0x00448ef6; break;
2448  case ATA_UDMA2: timing = 0x00436ef6; break;
2449  case ATA_UDMA3: timing = 0x00424ef6; break;
2450  case ATA_UDMA4: timing = 0x004127f3; break;
2451  case ATA_UDMA5: timing = 0x004127f3; break;
2452  }
2453  break;
2454  default:
2455  return;
2456  }
2457  if(!timing) {
2458  return;
2459  }
2460  SetPciConfig4(port, timing);
2461 
2462 #else
2463 // **** Linux code ****
2464 
2465  UCHAR r_bp, r_cp, r_ap;
2466  ULONG i;
2467 
2468  static UCHAR udma_timing[6][2] = {
2469  { 0x60, 0x03 }, /* 33 Mhz Clock */
2470  { 0x40, 0x02 },
2471  { 0x20, 0x01 },
2472  { 0x40, 0x02 }, /* 66 Mhz Clock */
2473  { 0x20, 0x01 },
2474  { 0x20, 0x01 }
2475  };
2476  static UCHAR mdma_timing[3][2] = {
2477  { 0xe0, 0x0f },
2478  { 0x60, 0x04 },
2479  { 0x60, 0x03 },
2480  };
2481  static USHORT pio_timing[5] = {
2482  0x0913, 0x050C , 0x0308, 0x0206, 0x0104
2483  };
2484 
2485  if(mode > ATA_UDMA5) {
2486  return;
2487  }
2488 
2489  if(mode > ATA_WDMA0) {
2490 
2491  GetPciConfig1(port+1, r_bp);
2492  GetPciConfig1(port+2, r_cp);
2493 
2494  r_bp &= ~0xE0;
2495  r_cp &= ~0x0F;
2496 
2497  if(mode >= ATA_UDMA0) {
2498  i = mode - ATA_UDMA0;
2499  r_bp |= udma_timing[i][0];
2500  r_cp |= udma_timing[i][1];
2501 
2502  } else {
2503  i = mode - ATA_WDMA0;
2504  r_bp |= mdma_timing[i][0];
2505  r_cp |= mdma_timing[i][1];
2506  }
2507  SetPciConfig1(port+1, r_bp);
2508  SetPciConfig1(port+2, r_cp);
2509  } else
2510  if(mode <= ATA_PIO5) {
2511  GetPciConfig1(port+0, r_ap);
2512  GetPciConfig1(port+1, r_bp);
2513 
2514  i = mode - ATA_PIO0;
2515  r_ap &= ~0x3F; /* Preserve ERRDY_EN, SYNC_IN */
2516  r_bp &= ~0x1F;
2517  r_ap |= (UCHAR)(pio_timing[i] >> 8);
2518  r_bp |= (UCHAR)(pio_timing[i] & 0xFF);
2519 
2520 // if (ata_pio_need_iordy(adev))
2521  r_ap |= 0x20; /* IORDY enable */
2522 // if (adev->class == ATA_DEV_ATA)
2523 // r_ap |= 0x10; /* FIFO enable */
2524 
2525  SetPciConfig1(port+0, r_ap);
2526  SetPciConfig1(port+1, r_bp);
2527  }
2528 
2529 #endif
2530 
2531 } // end promise_timing()
2532 
2533 
2534 VOID
2535 NTAPI
2536 hpt_timing(
2537  IN PHW_DEVICE_EXTENSION deviceExtension,
2538  IN ULONG dev, // physical device number (0-3)
2539  IN CHAR mode
2540  )
2541 {
2542  PVOID HwDeviceExtension = (PVOID)deviceExtension;
2543  ULONG slotNumber = deviceExtension->slotNumber;
2544  ULONG SystemIoBusNumber = deviceExtension->SystemIoBusNumber;
2545 
2546  ULONG ChipType = deviceExtension->HwFlags & CHIPTYPE_MASK;
2547  //ULONG ChipFlags = deviceExtension->HwFlags & CHIPFLAG_MASK;
2548 
2549  ULONG timing = 0;
2550 
2551  if(mode == ATA_PIO5)
2552  mode = ATA_PIO4;
2553 
2554  switch(ChipType) {
2555  case HPT374:
2556 
2557  switch (mode) { /* HPT374 */
2558  case ATA_PIO0: timing = 0x0ac1f48a; break;
2559  case ATA_PIO1: timing = 0x0ac1f465; break;
2560  case ATA_PIO2: timing = 0x0a81f454; break;
2561  case ATA_PIO3: timing = 0x0a81f443; break;
2562  case ATA_PIO4: timing = 0x0a81f442; break;
2563  case ATA_WDMA0: timing = 0x228082ea; break;
2564  case ATA_WDMA1: timing = 0x22808254; break;
2565  case ATA_WDMA2: timing = 0x22808242; break;
2566  case ATA_UDMA0: timing = 0x121882ea; break;
2567  case ATA_UDMA1: timing = 0x12148254; break;
2568  case ATA_UDMA2: timing = 0x120c8242; break;
2569  case ATA_UDMA3: timing = 0x128c8242; break;
2570  case ATA_UDMA4: timing = 0x12ac8242; break;
2571  case ATA_UDMA5: timing = 0x12848242; break;
2572  case ATA_UDMA6: timing = 0x12808242; break;
2573  default: timing = 0x0d029d5e;
2574  }
2575  break;
2576 
2577  case HPT372:
2578 
2579  switch (mode) { /* HPT372 */
2580  case ATA_PIO0: timing = 0x0d029d5e; break;
2581  case ATA_PIO1: timing = 0x0d029d26; break;
2582  case ATA_PIO2: timing = 0x0c829ca6; break;
2583  case ATA_PIO3: timing = 0x0c829c84; break;
2584  case ATA_PIO4: timing = 0x0c829c62; break;
2585  case ATA_WDMA0: timing = 0x2c82922e; break;
2586  case ATA_WDMA1: timing = 0x2c829266; break;
2587  case ATA_WDMA2: timing = 0x2c829262; break;
2588  case ATA_UDMA0: timing = 0x1c829c62; break;
2589  case ATA_UDMA1: timing = 0x1c9a9c62; break;
2590  case ATA_UDMA2: timing = 0x1c929c62; break;
2591  case ATA_UDMA3: timing = 0x1c8e9c62; break;
2592  case ATA_UDMA4: timing = 0x1c8a9c62; break;
2593  case ATA_UDMA5: timing = 0x1c8a9c62; break;
2594  case ATA_UDMA6: timing = 0x1c869c62; break;
2595  default: timing = 0x0d029d5e;
2596  }
2597  break;
2598 
2599  case HPT370:
2600 
2601  switch (mode) { /* HPT370 */
2602  case ATA_PIO0: timing = 0x06914e57; break;
2603  case ATA_PIO1: timing = 0x06914e43; break;
2604  case ATA_PIO2: timing = 0x06514e33; break;
2605  case ATA_PIO3: timing = 0x06514e22; break;
2606  case ATA_PIO4: timing = 0x06514e21; break;
2607  case ATA_WDMA0: timing = 0x26514e97; break;
2608  case ATA_WDMA1: timing = 0x26514e33; break;
2609  case ATA_WDMA2: timing = 0x26514e21; break;
2610  case ATA_UDMA0: timing = 0x16514e31; break;
2611  case ATA_UDMA1: timing = 0x164d4e31; break;
2612  case ATA_UDMA2: timing = 0x16494e31; break;
2613  case ATA_UDMA3: timing = 0x166d4e31; break;
2614  case ATA_UDMA4: timing = 0x16454e31; break;
2615  case ATA_UDMA5: timing = 0x16454e31; break;
2616  default: timing = 0x06514e57;
2617  }
2618 
2619  case HPT366: {
2620  UCHAR reg41;
2621 
2622  GetPciConfig1(0x41 + (dev << 2), reg41);
2623 
2624  switch (reg41) {
2625  case 0x85: /* 25Mhz */
2626  switch (mode) {
2627  case ATA_PIO0: timing = 0x40d08585; break;
2628  case ATA_PIO1: timing = 0x40d08572; break;
2629  case ATA_PIO2: timing = 0x40ca8542; break;
2630  case ATA_PIO3: timing = 0x40ca8532; break;
2631  case ATA_PIO4: timing = 0x40ca8521; break;
2632  case ATA_WDMA2: timing = 0x20ca8521; break;
2633  case ATA_UDMA2: timing = 0x10cf8521; break;
2634  case ATA_UDMA4: timing = 0x10c98521; break;
2635  default: timing = 0x01208585;
2636  }
2637  break;
2638  default:
2639  case 0xa7: /* 33MHz */
2640  switch (mode) {
2641  case ATA_PIO0: timing = 0x40d0a7aa; break;
2642  case ATA_PIO1: timing = 0x40d0a7a3; break;
2643  case ATA_PIO2: timing = 0x40d0a753; break;
2644  case ATA_PIO3: timing = 0x40c8a742; break;
2645  case ATA_PIO4: timing = 0x40c8a731; break;
2646  case ATA_WDMA0: timing = 0x20c8a797; break;
2647  case ATA_WDMA1: timing = 0x20c8a732; break;
2648  case ATA_WDMA2: timing = 0x20c8a731; break;
2649  case ATA_UDMA0: timing = 0x10c8a731; break;
2650  case ATA_UDMA1: timing = 0x10cba731; break;
2651  case ATA_UDMA2: timing = 0x10caa731; break;
2652  case ATA_UDMA3: timing = 0x10cfa731; break;
2653  case ATA_UDMA4: timing = 0x10c9a731; break;
2654  default: timing = 0x0120a7a7;
2655  }
2656  break;
2657  case 0xd9: /* 40Mhz */
2658  switch (mode) {
2659  case ATA_PIO0: timing = 0x4018d9d9; break;
2660  case ATA_PIO1: timing = 0x4010d9c7; break;
2661  case ATA_PIO2: timing = 0x4010d997; break;
2662  case ATA_PIO3: timing = 0x4010d974; break;
2663  case ATA_PIO4: timing = 0x4008d963; break;
2664  case ATA_WDMA2: timing = 0x2008d943; break;
2665  case ATA_UDMA2: timing = 0x100bd943; break;
2666  case ATA_UDMA4: timing = 0x100fd943; break;
2667  default: timing = 0x0120d9d9;
2668  }
2669  }
2670  break; }
2671  }
2672 
2673  SetPciConfig4(0x40 + (dev<<2), timing);
2674 } // end hpt_timing()
2675 
2676 
2677 #define FIT(v,min,max) (((v)>(max)?(max):(v))<(min)?(min):(v))
2678 
2679 VOID
2680 NTAPI
2681 via82c_timing(
2682  IN PHW_DEVICE_EXTENSION deviceExtension,
2683  IN ULONG dev, // physical device number (0-3)
2684  IN CHAR mode
2685  )
2686 {
2687  PVOID HwDeviceExtension = (PVOID)deviceExtension;
2688  ULONG slotNumber = deviceExtension->slotNumber;
2689  ULONG SystemIoBusNumber = deviceExtension->SystemIoBusNumber;
2690 
2691  // Newer chips dislike this:
2692  if(
2693  deviceExtension->MaxTransferMode < ATA_UDMA6) {
2694  return;
2695  }
2696 
2697  USHORT T = 1000 / /* PciBusClockMHz()*/ 33;
2698 
2699  USHORT setup = 0;
2700  USHORT active = 0;
2701  USHORT recover = 0;
2702  USHORT cycle = 0;
2703 
2704  UCHAR t;
2705 
2706  switch(mode) {
2707  default:
2708  case ATA_PIO0: setup = 70; active = 165; recover = 150; cycle = 600; break;
2709  case ATA_PIO1: setup = 50; active = 125; recover = 100; cycle = 383; break;
2710  case ATA_PIO2: setup = 30; active = 100; recover = 90; cycle = 240; break;
2711  case ATA_PIO3: setup = 30; active = 80; recover = 70; cycle = 180; break;
2712  case ATA_PIO4: setup = 25; active = 70; recover = 25; cycle = 120; break;
2713  case ATA_PIO5: setup = 20; active = 50; recover = 30; cycle = 100; break;
2714  }
2715 
2716  setup = (setup -1)/(T+1);
2717  active = (active -1)/(T+1);
2718  recover = (recover-1)/(T+1);
2719  cycle = (cycle -1)/(T+1);
2720 
2721  if (active + recover < cycle) {
2722  active += (cycle - (active + recover)) / 2;
2723  recover = cycle - active;
2724  }
2725 
2726  /* PIO address setup */
2727  GetPciConfig1(0x4c, t);
2728  t = (t & ~(3 << ((3 - dev) << 1))) | (FIT(setup - 1, 0, 3) << ((3 - dev) << 1));
2729  SetPciConfig1(0x4c, t);
2730 
2731  /* PIO active & recover */
2732  SetPciConfig1(0x4b-dev, (FIT(active - 1, 0, 0xf) << 4) | FIT(recover - 1, 0, 0xf) );
2733 } // end via82c_timing()
2734 
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GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
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