1 /*
2 *
3 * 3780i.c -- helper routines for the 3780i DSP
4 *
5 *
6 * Written By: Mike Sullivan IBM Corporation
7 *
8 * Copyright (C) 1999 IBM Corporation
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * NO WARRANTY
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
30 *
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
39 *
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
43 *
44 *
45 * 10/23/2000 - Alpha Release
46 * First release to the public
47 */
48
49 #include <linux/version.h>
50 #include <linux/config.h>
51 #include <linux/kernel.h>
52 #include <linux/unistd.h>
53 #include <linux/delay.h>
54 #include <linux/ioport.h>
55 #include <linux/init.h>
56 #include <asm/io.h>
57 #include <asm/uaccess.h>
58 #include <asm/system.h>
59 #include <asm/irq.h>
60 #include <asm/bitops.h>
61 #include "smapi.h"
62 #include "mwavedd.h"
63 #include "3780i.h"
64
65 static spinlock_t dsp_lock = SPIN_LOCK_UNLOCKED;
66 static unsigned long flags;
67
68
PaceMsaAccess(unsigned short usDspBaseIO)69 static void PaceMsaAccess(unsigned short usDspBaseIO)
70 {
71 if(current->need_resched)
72 schedule();
73 udelay(100);
74 if(current->need_resched)
75 schedule();
76 }
77
dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,unsigned long ulMsaAddr)78 unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
79 unsigned long ulMsaAddr)
80 {
81 unsigned short val;
82
83 PRINTK_3(TRACE_3780I,
84 "3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lx\n",
85 usDspBaseIO, ulMsaAddr);
86
87 spin_lock_irqsave(&dsp_lock, flags);
88 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
89 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
90 val = InWordDsp(DSP_MsaDataDSISHigh);
91 spin_unlock_irqrestore(&dsp_lock, flags);
92
93 PRINTK_2(TRACE_3780I, "3780i::dsp3780I_ReadMsaCfg exit val %x\n", val);
94
95 return val;
96 }
97
dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,unsigned long ulMsaAddr,unsigned short usValue)98 void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
99 unsigned long ulMsaAddr, unsigned short usValue)
100 {
101
102 PRINTK_4(TRACE_3780I,
103 "3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %x\n",
104 usDspBaseIO, ulMsaAddr, usValue);
105
106 spin_lock_irqsave(&dsp_lock, flags);
107 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
108 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
109 OutWordDsp(DSP_MsaDataDSISHigh, usValue);
110 spin_unlock_irqrestore(&dsp_lock, flags);
111 }
112
dsp3780I_WriteGenCfg(unsigned short usDspBaseIO,unsigned uIndex,unsigned char ucValue)113 void dsp3780I_WriteGenCfg(unsigned short usDspBaseIO, unsigned uIndex,
114 unsigned char ucValue)
115 {
116 DSP_ISA_SLAVE_CONTROL rSlaveControl;
117 DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
118
119
120 PRINTK_4(TRACE_3780I,
121 "3780i::dsp3780i_WriteGenCfg entry usDspBaseIO %x uIndex %x ucValue %x\n",
122 usDspBaseIO, uIndex, ucValue);
123
124 MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
125
126 PRINTK_2(TRACE_3780I,
127 "3780i::dsp3780i_WriteGenCfg rSlaveControl %x\n",
128 MKBYTE(rSlaveControl));
129
130 rSlaveControl_Save = rSlaveControl;
131 rSlaveControl.ConfigMode = TRUE;
132
133 PRINTK_2(TRACE_3780I,
134 "3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %x\n",
135 MKBYTE(rSlaveControl));
136
137 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
138 OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
139 OutByteDsp(DSP_ConfigData, ucValue);
140 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
141
142 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_WriteGenCfg exit\n");
143
144
145 }
146
dsp3780I_ReadGenCfg(unsigned short usDspBaseIO,unsigned uIndex)147 unsigned char dsp3780I_ReadGenCfg(unsigned short usDspBaseIO,
148 unsigned uIndex)
149 {
150 DSP_ISA_SLAVE_CONTROL rSlaveControl;
151 DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
152 unsigned char ucValue;
153
154
155 PRINTK_3(TRACE_3780I,
156 "3780i::dsp3780i_ReadGenCfg entry usDspBaseIO %x uIndex %x\n",
157 usDspBaseIO, uIndex);
158
159 MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
160 rSlaveControl_Save = rSlaveControl;
161 rSlaveControl.ConfigMode = TRUE;
162 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
163 OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
164 ucValue = InByteDsp(DSP_ConfigData);
165 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
166
167 PRINTK_2(TRACE_3780I,
168 "3780i::dsp3780i_ReadGenCfg exit ucValue %x\n", ucValue);
169
170
171 return ucValue;
172 }
173
dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,unsigned short * pIrqMap,unsigned short * pDmaMap)174 int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
175 unsigned short *pIrqMap,
176 unsigned short *pDmaMap)
177 {
178 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
179 int i;
180 DSP_UART_CFG_1 rUartCfg1;
181 DSP_UART_CFG_2 rUartCfg2;
182 DSP_HBRIDGE_CFG_1 rHBridgeCfg1;
183 DSP_HBRIDGE_CFG_2 rHBridgeCfg2;
184 DSP_BUSMASTER_CFG_1 rBusmasterCfg1;
185 DSP_BUSMASTER_CFG_2 rBusmasterCfg2;
186 DSP_ISA_PROT_CFG rIsaProtCfg;
187 DSP_POWER_MGMT_CFG rPowerMgmtCfg;
188 DSP_HBUS_TIMER_CFG rHBusTimerCfg;
189 DSP_LBUS_TIMEOUT_DISABLE rLBusTimeoutDisable;
190 DSP_CHIP_RESET rChipReset;
191 DSP_CLOCK_CONTROL_1 rClockControl1;
192 DSP_CLOCK_CONTROL_2 rClockControl2;
193 DSP_ISA_SLAVE_CONTROL rSlaveControl;
194 DSP_HBRIDGE_CONTROL rHBridgeControl;
195 unsigned short ChipID = 0;
196 unsigned short tval;
197
198
199 PRINTK_2(TRACE_3780I,
200 "3780i::dsp3780I_EnableDSP entry pSettings->bDSPEnabled %x\n",
201 pSettings->bDSPEnabled);
202
203
204 if (!pSettings->bDSPEnabled) {
205 PRINTK_ERROR( KERN_ERR "3780i::dsp3780I_EnableDSP: Error: DSP not enabled. Aborting.\n" );
206 return -EIO;
207 }
208
209
210 PRINTK_2(TRACE_3780I,
211 "3780i::dsp3780i_EnableDSP entry pSettings->bModemEnabled %x\n",
212 pSettings->bModemEnabled);
213
214 if (pSettings->bModemEnabled) {
215 rUartCfg1.Reserved = rUartCfg2.Reserved = 0;
216 rUartCfg1.IrqActiveLow = pSettings->bUartIrqActiveLow;
217 rUartCfg1.IrqPulse = pSettings->bUartIrqPulse;
218 rUartCfg1.Irq =
219 (unsigned char) pIrqMap[pSettings->usUartIrq];
220 switch (pSettings->usUartBaseIO) {
221 case 0x03F8:
222 rUartCfg1.BaseIO = 0;
223 break;
224 case 0x02F8:
225 rUartCfg1.BaseIO = 1;
226 break;
227 case 0x03E8:
228 rUartCfg1.BaseIO = 2;
229 break;
230 case 0x02E8:
231 rUartCfg1.BaseIO = 3;
232 break;
233 }
234 rUartCfg2.Enable = TRUE;
235 }
236
237 rHBridgeCfg1.Reserved = rHBridgeCfg2.Reserved = 0;
238 rHBridgeCfg1.IrqActiveLow = pSettings->bDspIrqActiveLow;
239 rHBridgeCfg1.IrqPulse = pSettings->bDspIrqPulse;
240 rHBridgeCfg1.Irq = (unsigned char) pIrqMap[pSettings->usDspIrq];
241 rHBridgeCfg1.AccessMode = 1;
242 rHBridgeCfg2.Enable = TRUE;
243
244
245 rBusmasterCfg2.Reserved = 0;
246 rBusmasterCfg1.Dma = (unsigned char) pDmaMap[pSettings->usDspDma];
247 rBusmasterCfg1.NumTransfers =
248 (unsigned char) pSettings->usNumTransfers;
249 rBusmasterCfg1.ReRequest = (unsigned char) pSettings->usReRequest;
250 rBusmasterCfg1.MEMCS16 = pSettings->bEnableMEMCS16;
251 rBusmasterCfg2.IsaMemCmdWidth =
252 (unsigned char) pSettings->usIsaMemCmdWidth;
253
254
255 rIsaProtCfg.Reserved = 0;
256 rIsaProtCfg.GateIOCHRDY = pSettings->bGateIOCHRDY;
257
258 rPowerMgmtCfg.Reserved = 0;
259 rPowerMgmtCfg.Enable = pSettings->bEnablePwrMgmt;
260
261 rHBusTimerCfg.LoadValue =
262 (unsigned char) pSettings->usHBusTimerLoadValue;
263
264 rLBusTimeoutDisable.Reserved = 0;
265 rLBusTimeoutDisable.DisableTimeout =
266 pSettings->bDisableLBusTimeout;
267
268 MKWORD(rChipReset) = ~pSettings->usChipletEnable;
269
270 rClockControl1.Reserved1 = rClockControl1.Reserved2 = 0;
271 rClockControl1.N_Divisor = pSettings->usN_Divisor;
272 rClockControl1.M_Multiplier = pSettings->usM_Multiplier;
273
274 rClockControl2.Reserved = 0;
275 rClockControl2.PllBypass = pSettings->bPllBypass;
276
277 /* Issue a soft reset to the chip */
278 /* Note: Since we may be coming in with 3780i clocks suspended, we must keep
279 * soft-reset active for 10ms.
280 */
281 rSlaveControl.ClockControl = 0;
282 rSlaveControl.SoftReset = TRUE;
283 rSlaveControl.ConfigMode = FALSE;
284 rSlaveControl.Reserved = 0;
285
286 PRINTK_4(TRACE_3780I,
287 "3780i::dsp3780i_EnableDSP usDspBaseIO %x index %x taddr %x\n",
288 usDspBaseIO, DSP_IsaSlaveControl,
289 usDspBaseIO + DSP_IsaSlaveControl);
290
291 PRINTK_2(TRACE_3780I,
292 "3780i::dsp3780i_EnableDSP rSlaveContrl %x\n",
293 MKWORD(rSlaveControl));
294
295 spin_lock_irqsave(&dsp_lock, flags);
296 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
297 MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
298
299 PRINTK_2(TRACE_3780I,
300 "3780i::dsp3780i_EnableDSP rSlaveControl 2 %x\n", tval);
301
302
303 for (i = 0; i < 11; i++)
304 udelay(2000);
305
306 rSlaveControl.SoftReset = FALSE;
307 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
308
309 MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
310
311 PRINTK_2(TRACE_3780I,
312 "3780i::dsp3780i_EnableDSP rSlaveControl 3 %x\n", tval);
313
314
315 /* Program our general configuration registers */
316 WriteGenCfg(DSP_HBridgeCfg1Index, MKBYTE(rHBridgeCfg1));
317 WriteGenCfg(DSP_HBridgeCfg2Index, MKBYTE(rHBridgeCfg2));
318 WriteGenCfg(DSP_BusMasterCfg1Index, MKBYTE(rBusmasterCfg1));
319 WriteGenCfg(DSP_BusMasterCfg2Index, MKBYTE(rBusmasterCfg2));
320 WriteGenCfg(DSP_IsaProtCfgIndex, MKBYTE(rIsaProtCfg));
321 WriteGenCfg(DSP_PowerMgCfgIndex, MKBYTE(rPowerMgmtCfg));
322 WriteGenCfg(DSP_HBusTimerCfgIndex, MKBYTE(rHBusTimerCfg));
323
324 if (pSettings->bModemEnabled) {
325 WriteGenCfg(DSP_UartCfg1Index, MKBYTE(rUartCfg1));
326 WriteGenCfg(DSP_UartCfg2Index, MKBYTE(rUartCfg2));
327 }
328
329
330 rHBridgeControl.EnableDspInt = FALSE;
331 rHBridgeControl.MemAutoInc = TRUE;
332 rHBridgeControl.IoAutoInc = FALSE;
333 rHBridgeControl.DiagnosticMode = FALSE;
334
335 PRINTK_3(TRACE_3780I,
336 "3780i::dsp3780i_EnableDSP DSP_HBridgeControl %x rHBridgeControl %x\n",
337 DSP_HBridgeControl, MKWORD(rHBridgeControl));
338
339 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
340 spin_unlock_irqrestore(&dsp_lock, flags);
341 WriteMsaCfg(DSP_LBusTimeoutDisable, MKWORD(rLBusTimeoutDisable));
342 WriteMsaCfg(DSP_ClockControl_1, MKWORD(rClockControl1));
343 WriteMsaCfg(DSP_ClockControl_2, MKWORD(rClockControl2));
344 WriteMsaCfg(DSP_ChipReset, MKWORD(rChipReset));
345
346 ChipID = ReadMsaCfg(DSP_ChipID);
347
348 PRINTK_2(TRACE_3780I,
349 "3780i::dsp3780I_EnableDSP exiting bRC=TRUE, ChipID %x\n",
350 ChipID);
351
352 return 0;
353 }
354
dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)355 int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
356 {
357 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
358 DSP_ISA_SLAVE_CONTROL rSlaveControl;
359
360
361 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP entry\n");
362
363 rSlaveControl.ClockControl = 0;
364 rSlaveControl.SoftReset = TRUE;
365 rSlaveControl.ConfigMode = FALSE;
366 rSlaveControl.Reserved = 0;
367 spin_lock_irqsave(&dsp_lock, flags);
368 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
369
370 udelay(5);
371
372 rSlaveControl.ClockControl = 1;
373 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
374 spin_unlock_irqrestore(&dsp_lock, flags);
375
376 udelay(5);
377
378
379 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP exit\n");
380
381 return 0;
382 }
383
dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)384 int dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)
385 {
386 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
387 DSP_BOOT_DOMAIN rBootDomain;
388 DSP_HBRIDGE_CONTROL rHBridgeControl;
389
390
391 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entry\n");
392
393 spin_lock_irqsave(&dsp_lock, flags);
394 /* Mask DSP to PC interrupt */
395 MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
396
397 PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %x\n",
398 MKWORD(rHBridgeControl));
399
400 rHBridgeControl.EnableDspInt = FALSE;
401 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
402 spin_unlock_irqrestore(&dsp_lock, flags);
403
404 /* Reset the core via the boot domain register */
405 rBootDomain.ResetCore = TRUE;
406 rBootDomain.Halt = TRUE;
407 rBootDomain.NMI = TRUE;
408 rBootDomain.Reserved = 0;
409
410 PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rBootDomain %x\n",
411 MKWORD(rBootDomain));
412
413 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
414
415 /* Reset all the chiplets and then reactivate them */
416 WriteMsaCfg(DSP_ChipReset, 0xFFFF);
417 udelay(5);
418 WriteMsaCfg(DSP_ChipReset,
419 (unsigned short) (~pSettings->usChipletEnable));
420
421
422 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset exit bRC=0\n");
423
424 return 0;
425 }
426
427
dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)428 int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
429 {
430 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
431 DSP_BOOT_DOMAIN rBootDomain;
432 DSP_HBRIDGE_CONTROL rHBridgeControl;
433
434
435 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entry\n");
436
437
438 /* Transition the core to a running state */
439 rBootDomain.ResetCore = TRUE;
440 rBootDomain.Halt = FALSE;
441 rBootDomain.NMI = TRUE;
442 rBootDomain.Reserved = 0;
443 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
444
445 udelay(5);
446
447 rBootDomain.ResetCore = FALSE;
448 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
449 udelay(5);
450
451 rBootDomain.NMI = FALSE;
452 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
453 udelay(5);
454
455 /* Enable DSP to PC interrupt */
456 spin_lock_irqsave(&dsp_lock, flags);
457 MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
458 rHBridgeControl.EnableDspInt = TRUE;
459
460 PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Run rHBridgeControl %x\n",
461 MKWORD(rHBridgeControl));
462
463 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
464 spin_unlock_irqrestore(&dsp_lock, flags);
465
466
467 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run exit bRC=TRUE\n");
468
469 return 0;
470 }
471
472
dsp3780I_ReadDStore(unsigned short usDspBaseIO,void * pvBuffer,unsigned uCount,unsigned long ulDSPAddr)473 int dsp3780I_ReadDStore(unsigned short usDspBaseIO, void *pvBuffer,
474 unsigned uCount, unsigned long ulDSPAddr)
475 {
476 unsigned short *pusBuffer = pvBuffer;
477 unsigned short val;
478
479
480 PRINTK_5(TRACE_3780I,
481 "3780i::dsp3780I_ReadDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
482 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
483
484
485 /* Set the initial MSA address. No adjustments need to be made to data store addresses */
486 spin_lock_irqsave(&dsp_lock, flags);
487 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
488 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
489 spin_unlock_irqrestore(&dsp_lock, flags);
490
491 /* Transfer the memory block */
492 while (uCount-- != 0) {
493 spin_lock_irqsave(&dsp_lock, flags);
494 val = InWordDsp(DSP_MsaDataDSISHigh);
495 spin_unlock_irqrestore(&dsp_lock, flags);
496 if(put_user(val, pusBuffer++))
497 return -EFAULT;
498
499 PRINTK_3(TRACE_3780I,
500 "3780I::dsp3780I_ReadDStore uCount %x val %x\n",
501 uCount, val);
502
503 PaceMsaAccess(usDspBaseIO);
504 }
505
506
507 PRINTK_1(TRACE_3780I,
508 "3780I::dsp3780I_ReadDStore exit bRC=TRUE\n");
509
510 return 0;
511 }
512
dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,void * pvBuffer,unsigned uCount,unsigned long ulDSPAddr)513 int dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,
514 void *pvBuffer, unsigned uCount,
515 unsigned long ulDSPAddr)
516 {
517 unsigned short *pusBuffer = pvBuffer;
518 unsigned short val;
519
520
521 PRINTK_5(TRACE_3780I,
522 "3780i::dsp3780I_ReadAndDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
523 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
524
525
526 /* Set the initial MSA address. No adjustments need to be made to data store addresses */
527 spin_lock_irqsave(&dsp_lock, flags);
528 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
529 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
530 spin_unlock_irqrestore(&dsp_lock, flags);
531
532 /* Transfer the memory block */
533 while (uCount-- != 0) {
534 spin_lock_irqsave(&dsp_lock, flags);
535 val = InWordDsp(DSP_ReadAndClear);
536 spin_unlock_irqrestore(&dsp_lock, flags);
537 if(put_user(val, pusBuffer++))
538 return -EFAULT;
539
540 PRINTK_3(TRACE_3780I,
541 "3780I::dsp3780I_ReadAndCleanDStore uCount %x val %x\n",
542 uCount, val);
543
544 PaceMsaAccess(usDspBaseIO);
545 }
546
547
548 PRINTK_1(TRACE_3780I,
549 "3780I::dsp3780I_ReadAndClearDStore exit bRC=TRUE\n");
550
551 return 0;
552 }
553
554
dsp3780I_WriteDStore(unsigned short usDspBaseIO,void * pvBuffer,unsigned uCount,unsigned long ulDSPAddr)555 int dsp3780I_WriteDStore(unsigned short usDspBaseIO, void *pvBuffer,
556 unsigned uCount, unsigned long ulDSPAddr)
557 {
558 unsigned short *pusBuffer = pvBuffer;
559
560
561 PRINTK_5(TRACE_3780I,
562 "3780i::dsp3780D_WriteDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
563 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
564
565
566 /* Set the initial MSA address. No adjustments need to be made to data store addresses */
567 spin_lock_irqsave(&dsp_lock, flags);
568 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
569 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
570 spin_unlock_irqrestore(&dsp_lock, flags);
571
572 /* Transfer the memory block */
573 while (uCount-- != 0) {
574 unsigned short val;
575 if(get_user(val, pusBuffer++))
576 return -EFAULT;
577 spin_lock_irqsave(&dsp_lock, flags);
578 OutWordDsp(DSP_MsaDataDSISHigh, val);
579 spin_unlock_irqrestore(&dsp_lock, flags);
580
581 PRINTK_3(TRACE_3780I,
582 "3780I::dsp3780I_WriteDStore uCount %x val %x\n",
583 uCount, val);
584
585 PaceMsaAccess(usDspBaseIO);
586 }
587
588
589 PRINTK_1(TRACE_3780I,
590 "3780I::dsp3780D_WriteDStore exit bRC=TRUE\n");
591
592 return 0;
593 }
594
595
dsp3780I_ReadIStore(unsigned short usDspBaseIO,void * pvBuffer,unsigned uCount,unsigned long ulDSPAddr)596 int dsp3780I_ReadIStore(unsigned short usDspBaseIO, void *pvBuffer,
597 unsigned uCount, unsigned long ulDSPAddr)
598 {
599 unsigned short *pusBuffer = pvBuffer;
600
601 PRINTK_5(TRACE_3780I,
602 "3780i::dsp3780I_ReadIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
603 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
604
605 /*
606 * Set the initial MSA address. To convert from an instruction store
607 * address to an MSA address
608 * shift the address two bits to the left and set bit 22
609 */
610 ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
611 spin_lock_irqsave(&dsp_lock, flags);
612 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
613 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
614 spin_unlock_irqrestore(&dsp_lock, flags);
615
616 /* Transfer the memory block */
617 while (uCount-- != 0) {
618 unsigned short val_lo, val_hi;
619 spin_lock_irqsave(&dsp_lock, flags);
620 val_lo = InWordDsp(DSP_MsaDataISLow);
621 val_hi = InWordDsp(DSP_MsaDataDSISHigh);
622 spin_unlock_irqrestore(&dsp_lock, flags);
623 if(put_user(val_lo, pusBuffer++))
624 return -EFAULT;
625 if(put_user(val_hi, pusBuffer++))
626 return -EFAULT;
627
628 PRINTK_4(TRACE_3780I,
629 "3780I::dsp3780I_ReadIStore uCount %x val_lo %x val_hi %x\n",
630 uCount, val_lo, val_hi);
631
632 PaceMsaAccess(usDspBaseIO);
633
634 }
635
636 PRINTK_1(TRACE_3780I,
637 "3780I::dsp3780I_ReadIStore exit bRC=TRUE\n");
638
639 return 0;
640 }
641
642
dsp3780I_WriteIStore(unsigned short usDspBaseIO,void * pvBuffer,unsigned uCount,unsigned long ulDSPAddr)643 int dsp3780I_WriteIStore(unsigned short usDspBaseIO, void *pvBuffer,
644 unsigned uCount, unsigned long ulDSPAddr)
645 {
646 unsigned short *pusBuffer = pvBuffer;
647
648 PRINTK_5(TRACE_3780I,
649 "3780i::dsp3780I_WriteIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
650 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
651
652
653 /*
654 * Set the initial MSA address. To convert from an instruction store
655 * address to an MSA address
656 * shift the address two bits to the left and set bit 22
657 */
658 ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
659 spin_lock_irqsave(&dsp_lock, flags);
660 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
661 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
662 spin_unlock_irqrestore(&dsp_lock, flags);
663
664 /* Transfer the memory block */
665 while (uCount-- != 0) {
666 unsigned short val_lo, val_hi;
667 if(get_user(val_lo, pusBuffer++))
668 return -EFAULT;
669 if(get_user(val_hi, pusBuffer++))
670 return -EFAULT;
671 spin_lock_irqsave(&dsp_lock, flags);
672 OutWordDsp(DSP_MsaDataISLow, val_lo);
673 OutWordDsp(DSP_MsaDataDSISHigh, val_hi);
674 spin_unlock_irqrestore(&dsp_lock, flags);
675
676 PRINTK_4(TRACE_3780I,
677 "3780I::dsp3780I_WriteIStore uCount %x val_lo %x val_hi %x\n",
678 uCount, val_lo, val_hi);
679
680 PaceMsaAccess(usDspBaseIO);
681
682 }
683
684 PRINTK_1(TRACE_3780I,
685 "3780I::dsp3780I_WriteIStore exit bRC=TRUE\n");
686
687 return 0;
688 }
689
690
dsp3780I_GetIPCSource(unsigned short usDspBaseIO,unsigned short * pusIPCSource)691 int dsp3780I_GetIPCSource(unsigned short usDspBaseIO,
692 unsigned short *pusIPCSource)
693 {
694 DSP_HBRIDGE_CONTROL rHBridgeControl;
695 unsigned short temp;
696
697
698 PRINTK_3(TRACE_3780I,
699 "3780i::dsp3780I_GetIPCSource entry usDspBaseIO %x pusIPCSource %p\n",
700 usDspBaseIO, pusIPCSource);
701
702 /*
703 * Disable DSP to PC interrupts, read the interupt register,
704 * clear the pending IPC bits, and reenable DSP to PC interrupts
705 */
706 spin_lock_irqsave(&dsp_lock, flags);
707 MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
708 rHBridgeControl.EnableDspInt = FALSE;
709 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
710
711 *pusIPCSource = InWordDsp(DSP_Interrupt);
712 temp = (unsigned short) ~(*pusIPCSource);
713
714 PRINTK_3(TRACE_3780I,
715 "3780i::dsp3780I_GetIPCSource, usIPCSource %x ~ %x\n",
716 *pusIPCSource, temp);
717
718 OutWordDsp(DSP_Interrupt, (unsigned short) ~(*pusIPCSource));
719
720 rHBridgeControl.EnableDspInt = TRUE;
721 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
722 spin_unlock_irqrestore(&dsp_lock, flags);
723
724
725 PRINTK_2(TRACE_3780I,
726 "3780i::dsp3780I_GetIPCSource exit usIPCSource %x\n",
727 *pusIPCSource);
728
729 return 0;
730 }
731