/drivers/char/mwave/3780i.c
C | 740 lines | 486 code | 175 blank | 79 comment | 22 complexity | f2ac118f18e40cf1328562fc001dd08e MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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/kernel.h>
50#include <linux/unistd.h>
51#include <linux/delay.h>
52#include <linux/ioport.h>
53#include <linux/init.h>
54#include <linux/bitops.h>
55#include <linux/sched.h> /* cond_resched() */
56
57#include <asm/io.h>
58#include <asm/uaccess.h>
59#include <asm/system.h>
60#include <asm/irq.h>
61#include "smapi.h"
62#include "mwavedd.h"
63#include "3780i.h"
64
65static DEFINE_SPINLOCK(dsp_lock);
66
67static void PaceMsaAccess(unsigned short usDspBaseIO)
68{
69 cond_resched();
70 udelay(100);
71 cond_resched();
72}
73
74unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
75 unsigned long ulMsaAddr)
76{
77 unsigned long flags;
78 unsigned short val;
79
80 PRINTK_3(TRACE_3780I,
81 "3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lx\n",
82 usDspBaseIO, ulMsaAddr);
83
84 spin_lock_irqsave(&dsp_lock, flags);
85 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
86 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
87 val = InWordDsp(DSP_MsaDataDSISHigh);
88 spin_unlock_irqrestore(&dsp_lock, flags);
89
90 PRINTK_2(TRACE_3780I, "3780i::dsp3780I_ReadMsaCfg exit val %x\n", val);
91
92 return val;
93}
94
95void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
96 unsigned long ulMsaAddr, unsigned short usValue)
97{
98 unsigned long flags;
99
100 PRINTK_4(TRACE_3780I,
101 "3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %x\n",
102 usDspBaseIO, ulMsaAddr, usValue);
103
104 spin_lock_irqsave(&dsp_lock, flags);
105 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
106 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
107 OutWordDsp(DSP_MsaDataDSISHigh, usValue);
108 spin_unlock_irqrestore(&dsp_lock, flags);
109}
110
111static void dsp3780I_WriteGenCfg(unsigned short usDspBaseIO, unsigned uIndex,
112 unsigned char ucValue)
113{
114 DSP_ISA_SLAVE_CONTROL rSlaveControl;
115 DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
116
117
118 PRINTK_4(TRACE_3780I,
119 "3780i::dsp3780i_WriteGenCfg entry usDspBaseIO %x uIndex %x ucValue %x\n",
120 usDspBaseIO, uIndex, ucValue);
121
122 MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
123
124 PRINTK_2(TRACE_3780I,
125 "3780i::dsp3780i_WriteGenCfg rSlaveControl %x\n",
126 MKBYTE(rSlaveControl));
127
128 rSlaveControl_Save = rSlaveControl;
129 rSlaveControl.ConfigMode = TRUE;
130
131 PRINTK_2(TRACE_3780I,
132 "3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %x\n",
133 MKBYTE(rSlaveControl));
134
135 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
136 OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
137 OutByteDsp(DSP_ConfigData, ucValue);
138 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
139
140 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_WriteGenCfg exit\n");
141
142
143}
144
145#if 0
146unsigned char dsp3780I_ReadGenCfg(unsigned short usDspBaseIO,
147 unsigned uIndex)
148{
149 DSP_ISA_SLAVE_CONTROL rSlaveControl;
150 DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
151 unsigned char ucValue;
152
153
154 PRINTK_3(TRACE_3780I,
155 "3780i::dsp3780i_ReadGenCfg entry usDspBaseIO %x uIndex %x\n",
156 usDspBaseIO, uIndex);
157
158 MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
159 rSlaveControl_Save = rSlaveControl;
160 rSlaveControl.ConfigMode = TRUE;
161 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
162 OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
163 ucValue = InByteDsp(DSP_ConfigData);
164 OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
165
166 PRINTK_2(TRACE_3780I,
167 "3780i::dsp3780i_ReadGenCfg exit ucValue %x\n", ucValue);
168
169
170 return ucValue;
171}
172#endif /* 0 */
173
174int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
175 unsigned short *pIrqMap,
176 unsigned short *pDmaMap)
177{
178 unsigned long flags;
179 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
180 int i;
181 DSP_UART_CFG_1 rUartCfg1;
182 DSP_UART_CFG_2 rUartCfg2;
183 DSP_HBRIDGE_CFG_1 rHBridgeCfg1;
184 DSP_HBRIDGE_CFG_2 rHBridgeCfg2;
185 DSP_BUSMASTER_CFG_1 rBusmasterCfg1;
186 DSP_BUSMASTER_CFG_2 rBusmasterCfg2;
187 DSP_ISA_PROT_CFG rIsaProtCfg;
188 DSP_POWER_MGMT_CFG rPowerMgmtCfg;
189 DSP_HBUS_TIMER_CFG rHBusTimerCfg;
190 DSP_LBUS_TIMEOUT_DISABLE rLBusTimeoutDisable;
191 DSP_CHIP_RESET rChipReset;
192 DSP_CLOCK_CONTROL_1 rClockControl1;
193 DSP_CLOCK_CONTROL_2 rClockControl2;
194 DSP_ISA_SLAVE_CONTROL rSlaveControl;
195 DSP_HBRIDGE_CONTROL rHBridgeControl;
196 unsigned short ChipID = 0;
197 unsigned short tval;
198
199
200 PRINTK_2(TRACE_3780I,
201 "3780i::dsp3780I_EnableDSP entry pSettings->bDSPEnabled %x\n",
202 pSettings->bDSPEnabled);
203
204
205 if (!pSettings->bDSPEnabled) {
206 PRINTK_ERROR( KERN_ERR "3780i::dsp3780I_EnableDSP: Error: DSP not enabled. Aborting.\n" );
207 return -EIO;
208 }
209
210
211 PRINTK_2(TRACE_3780I,
212 "3780i::dsp3780i_EnableDSP entry pSettings->bModemEnabled %x\n",
213 pSettings->bModemEnabled);
214
215 if (pSettings->bModemEnabled) {
216 rUartCfg1.Reserved = rUartCfg2.Reserved = 0;
217 rUartCfg1.IrqActiveLow = pSettings->bUartIrqActiveLow;
218 rUartCfg1.IrqPulse = pSettings->bUartIrqPulse;
219 rUartCfg1.Irq =
220 (unsigned char) pIrqMap[pSettings->usUartIrq];
221 switch (pSettings->usUartBaseIO) {
222 case 0x03F8:
223 rUartCfg1.BaseIO = 0;
224 break;
225 case 0x02F8:
226 rUartCfg1.BaseIO = 1;
227 break;
228 case 0x03E8:
229 rUartCfg1.BaseIO = 2;
230 break;
231 case 0x02E8:
232 rUartCfg1.BaseIO = 3;
233 break;
234 }
235 rUartCfg2.Enable = TRUE;
236 }
237
238 rHBridgeCfg1.Reserved = rHBridgeCfg2.Reserved = 0;
239 rHBridgeCfg1.IrqActiveLow = pSettings->bDspIrqActiveLow;
240 rHBridgeCfg1.IrqPulse = pSettings->bDspIrqPulse;
241 rHBridgeCfg1.Irq = (unsigned char) pIrqMap[pSettings->usDspIrq];
242 rHBridgeCfg1.AccessMode = 1;
243 rHBridgeCfg2.Enable = TRUE;
244
245
246 rBusmasterCfg2.Reserved = 0;
247 rBusmasterCfg1.Dma = (unsigned char) pDmaMap[pSettings->usDspDma];
248 rBusmasterCfg1.NumTransfers =
249 (unsigned char) pSettings->usNumTransfers;
250 rBusmasterCfg1.ReRequest = (unsigned char) pSettings->usReRequest;
251 rBusmasterCfg1.MEMCS16 = pSettings->bEnableMEMCS16;
252 rBusmasterCfg2.IsaMemCmdWidth =
253 (unsigned char) pSettings->usIsaMemCmdWidth;
254
255
256 rIsaProtCfg.Reserved = 0;
257 rIsaProtCfg.GateIOCHRDY = pSettings->bGateIOCHRDY;
258
259 rPowerMgmtCfg.Reserved = 0;
260 rPowerMgmtCfg.Enable = pSettings->bEnablePwrMgmt;
261
262 rHBusTimerCfg.LoadValue =
263 (unsigned char) pSettings->usHBusTimerLoadValue;
264
265 rLBusTimeoutDisable.Reserved = 0;
266 rLBusTimeoutDisable.DisableTimeout =
267 pSettings->bDisableLBusTimeout;
268
269 MKWORD(rChipReset) = ~pSettings->usChipletEnable;
270
271 rClockControl1.Reserved1 = rClockControl1.Reserved2 = 0;
272 rClockControl1.N_Divisor = pSettings->usN_Divisor;
273 rClockControl1.M_Multiplier = pSettings->usM_Multiplier;
274
275 rClockControl2.Reserved = 0;
276 rClockControl2.PllBypass = pSettings->bPllBypass;
277
278 /* Issue a soft reset to the chip */
279 /* Note: Since we may be coming in with 3780i clocks suspended, we must keep
280 * soft-reset active for 10ms.
281 */
282 rSlaveControl.ClockControl = 0;
283 rSlaveControl.SoftReset = TRUE;
284 rSlaveControl.ConfigMode = FALSE;
285 rSlaveControl.Reserved = 0;
286
287 PRINTK_4(TRACE_3780I,
288 "3780i::dsp3780i_EnableDSP usDspBaseIO %x index %x taddr %x\n",
289 usDspBaseIO, DSP_IsaSlaveControl,
290 usDspBaseIO + DSP_IsaSlaveControl);
291
292 PRINTK_2(TRACE_3780I,
293 "3780i::dsp3780i_EnableDSP rSlaveContrl %x\n",
294 MKWORD(rSlaveControl));
295
296 spin_lock_irqsave(&dsp_lock, flags);
297 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
298 MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
299
300 PRINTK_2(TRACE_3780I,
301 "3780i::dsp3780i_EnableDSP rSlaveControl 2 %x\n", tval);
302
303
304 for (i = 0; i < 11; i++)
305 udelay(2000);
306
307 rSlaveControl.SoftReset = FALSE;
308 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
309
310 MKWORD(tval) = InWordDsp(DSP_IsaSlaveControl);
311
312 PRINTK_2(TRACE_3780I,
313 "3780i::dsp3780i_EnableDSP rSlaveControl 3 %x\n", tval);
314
315
316 /* Program our general configuration registers */
317 WriteGenCfg(DSP_HBridgeCfg1Index, MKBYTE(rHBridgeCfg1));
318 WriteGenCfg(DSP_HBridgeCfg2Index, MKBYTE(rHBridgeCfg2));
319 WriteGenCfg(DSP_BusMasterCfg1Index, MKBYTE(rBusmasterCfg1));
320 WriteGenCfg(DSP_BusMasterCfg2Index, MKBYTE(rBusmasterCfg2));
321 WriteGenCfg(DSP_IsaProtCfgIndex, MKBYTE(rIsaProtCfg));
322 WriteGenCfg(DSP_PowerMgCfgIndex, MKBYTE(rPowerMgmtCfg));
323 WriteGenCfg(DSP_HBusTimerCfgIndex, MKBYTE(rHBusTimerCfg));
324
325 if (pSettings->bModemEnabled) {
326 WriteGenCfg(DSP_UartCfg1Index, MKBYTE(rUartCfg1));
327 WriteGenCfg(DSP_UartCfg2Index, MKBYTE(rUartCfg2));
328 }
329
330
331 rHBridgeControl.EnableDspInt = FALSE;
332 rHBridgeControl.MemAutoInc = TRUE;
333 rHBridgeControl.IoAutoInc = FALSE;
334 rHBridgeControl.DiagnosticMode = FALSE;
335
336 PRINTK_3(TRACE_3780I,
337 "3780i::dsp3780i_EnableDSP DSP_HBridgeControl %x rHBridgeControl %x\n",
338 DSP_HBridgeControl, MKWORD(rHBridgeControl));
339
340 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
341 spin_unlock_irqrestore(&dsp_lock, flags);
342 WriteMsaCfg(DSP_LBusTimeoutDisable, MKWORD(rLBusTimeoutDisable));
343 WriteMsaCfg(DSP_ClockControl_1, MKWORD(rClockControl1));
344 WriteMsaCfg(DSP_ClockControl_2, MKWORD(rClockControl2));
345 WriteMsaCfg(DSP_ChipReset, MKWORD(rChipReset));
346
347 ChipID = ReadMsaCfg(DSP_ChipID);
348
349 PRINTK_2(TRACE_3780I,
350 "3780i::dsp3780I_EnableDSP exiting bRC=TRUE, ChipID %x\n",
351 ChipID);
352
353 return 0;
354}
355
356int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
357{
358 unsigned long flags;
359 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
360 DSP_ISA_SLAVE_CONTROL rSlaveControl;
361
362
363 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP entry\n");
364
365 rSlaveControl.ClockControl = 0;
366 rSlaveControl.SoftReset = TRUE;
367 rSlaveControl.ConfigMode = FALSE;
368 rSlaveControl.Reserved = 0;
369 spin_lock_irqsave(&dsp_lock, flags);
370 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
371
372 udelay(5);
373
374 rSlaveControl.ClockControl = 1;
375 OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
376 spin_unlock_irqrestore(&dsp_lock, flags);
377
378 udelay(5);
379
380
381 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP exit\n");
382
383 return 0;
384}
385
386int dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)
387{
388 unsigned long flags;
389 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
390 DSP_BOOT_DOMAIN rBootDomain;
391 DSP_HBRIDGE_CONTROL rHBridgeControl;
392
393
394 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entry\n");
395
396 spin_lock_irqsave(&dsp_lock, flags);
397 /* Mask DSP to PC interrupt */
398 MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
399
400 PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %x\n",
401 MKWORD(rHBridgeControl));
402
403 rHBridgeControl.EnableDspInt = FALSE;
404 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
405 spin_unlock_irqrestore(&dsp_lock, flags);
406
407 /* Reset the core via the boot domain register */
408 rBootDomain.ResetCore = TRUE;
409 rBootDomain.Halt = TRUE;
410 rBootDomain.NMI = TRUE;
411 rBootDomain.Reserved = 0;
412
413 PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rBootDomain %x\n",
414 MKWORD(rBootDomain));
415
416 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
417
418 /* Reset all the chiplets and then reactivate them */
419 WriteMsaCfg(DSP_ChipReset, 0xFFFF);
420 udelay(5);
421 WriteMsaCfg(DSP_ChipReset,
422 (unsigned short) (~pSettings->usChipletEnable));
423
424
425 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset exit bRC=0\n");
426
427 return 0;
428}
429
430
431int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
432{
433 unsigned long flags;
434 unsigned short usDspBaseIO = pSettings->usDspBaseIO;
435 DSP_BOOT_DOMAIN rBootDomain;
436 DSP_HBRIDGE_CONTROL rHBridgeControl;
437
438
439 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entry\n");
440
441
442 /* Transition the core to a running state */
443 rBootDomain.ResetCore = TRUE;
444 rBootDomain.Halt = FALSE;
445 rBootDomain.NMI = TRUE;
446 rBootDomain.Reserved = 0;
447 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
448
449 udelay(5);
450
451 rBootDomain.ResetCore = FALSE;
452 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
453 udelay(5);
454
455 rBootDomain.NMI = FALSE;
456 WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
457 udelay(5);
458
459 /* Enable DSP to PC interrupt */
460 spin_lock_irqsave(&dsp_lock, flags);
461 MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
462 rHBridgeControl.EnableDspInt = TRUE;
463
464 PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Run rHBridgeControl %x\n",
465 MKWORD(rHBridgeControl));
466
467 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
468 spin_unlock_irqrestore(&dsp_lock, flags);
469
470
471 PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run exit bRC=TRUE\n");
472
473 return 0;
474}
475
476
477int dsp3780I_ReadDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
478 unsigned uCount, unsigned long ulDSPAddr)
479{
480 unsigned long flags;
481 unsigned short __user *pusBuffer = pvBuffer;
482 unsigned short val;
483
484
485 PRINTK_5(TRACE_3780I,
486 "3780i::dsp3780I_ReadDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
487 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
488
489
490 /* Set the initial MSA address. No adjustments need to be made to data store addresses */
491 spin_lock_irqsave(&dsp_lock, flags);
492 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
493 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
494 spin_unlock_irqrestore(&dsp_lock, flags);
495
496 /* Transfer the memory block */
497 while (uCount-- != 0) {
498 spin_lock_irqsave(&dsp_lock, flags);
499 val = InWordDsp(DSP_MsaDataDSISHigh);
500 spin_unlock_irqrestore(&dsp_lock, flags);
501 if(put_user(val, pusBuffer++))
502 return -EFAULT;
503
504 PRINTK_3(TRACE_3780I,
505 "3780I::dsp3780I_ReadDStore uCount %x val %x\n",
506 uCount, val);
507
508 PaceMsaAccess(usDspBaseIO);
509 }
510
511
512 PRINTK_1(TRACE_3780I,
513 "3780I::dsp3780I_ReadDStore exit bRC=TRUE\n");
514
515 return 0;
516}
517
518int dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,
519 void __user *pvBuffer, unsigned uCount,
520 unsigned long ulDSPAddr)
521{
522 unsigned long flags;
523 unsigned short __user *pusBuffer = pvBuffer;
524 unsigned short val;
525
526
527 PRINTK_5(TRACE_3780I,
528 "3780i::dsp3780I_ReadAndDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
529 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
530
531
532 /* Set the initial MSA address. No adjustments need to be made to data store addresses */
533 spin_lock_irqsave(&dsp_lock, flags);
534 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
535 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
536 spin_unlock_irqrestore(&dsp_lock, flags);
537
538 /* Transfer the memory block */
539 while (uCount-- != 0) {
540 spin_lock_irqsave(&dsp_lock, flags);
541 val = InWordDsp(DSP_ReadAndClear);
542 spin_unlock_irqrestore(&dsp_lock, flags);
543 if(put_user(val, pusBuffer++))
544 return -EFAULT;
545
546 PRINTK_3(TRACE_3780I,
547 "3780I::dsp3780I_ReadAndCleanDStore uCount %x val %x\n",
548 uCount, val);
549
550 PaceMsaAccess(usDspBaseIO);
551 }
552
553
554 PRINTK_1(TRACE_3780I,
555 "3780I::dsp3780I_ReadAndClearDStore exit bRC=TRUE\n");
556
557 return 0;
558}
559
560
561int dsp3780I_WriteDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
562 unsigned uCount, unsigned long ulDSPAddr)
563{
564 unsigned long flags;
565 unsigned short __user *pusBuffer = pvBuffer;
566
567
568 PRINTK_5(TRACE_3780I,
569 "3780i::dsp3780D_WriteDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
570 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
571
572
573 /* Set the initial MSA address. No adjustments need to be made to data store addresses */
574 spin_lock_irqsave(&dsp_lock, flags);
575 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
576 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
577 spin_unlock_irqrestore(&dsp_lock, flags);
578
579 /* Transfer the memory block */
580 while (uCount-- != 0) {
581 unsigned short val;
582 if(get_user(val, pusBuffer++))
583 return -EFAULT;
584 spin_lock_irqsave(&dsp_lock, flags);
585 OutWordDsp(DSP_MsaDataDSISHigh, val);
586 spin_unlock_irqrestore(&dsp_lock, flags);
587
588 PRINTK_3(TRACE_3780I,
589 "3780I::dsp3780I_WriteDStore uCount %x val %x\n",
590 uCount, val);
591
592 PaceMsaAccess(usDspBaseIO);
593 }
594
595
596 PRINTK_1(TRACE_3780I,
597 "3780I::dsp3780D_WriteDStore exit bRC=TRUE\n");
598
599 return 0;
600}
601
602
603int dsp3780I_ReadIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
604 unsigned uCount, unsigned long ulDSPAddr)
605{
606 unsigned long flags;
607 unsigned short __user *pusBuffer = pvBuffer;
608
609 PRINTK_5(TRACE_3780I,
610 "3780i::dsp3780I_ReadIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
611 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
612
613 /*
614 * Set the initial MSA address. To convert from an instruction store
615 * address to an MSA address
616 * shift the address two bits to the left and set bit 22
617 */
618 ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
619 spin_lock_irqsave(&dsp_lock, flags);
620 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
621 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
622 spin_unlock_irqrestore(&dsp_lock, flags);
623
624 /* Transfer the memory block */
625 while (uCount-- != 0) {
626 unsigned short val_lo, val_hi;
627 spin_lock_irqsave(&dsp_lock, flags);
628 val_lo = InWordDsp(DSP_MsaDataISLow);
629 val_hi = InWordDsp(DSP_MsaDataDSISHigh);
630 spin_unlock_irqrestore(&dsp_lock, flags);
631 if(put_user(val_lo, pusBuffer++))
632 return -EFAULT;
633 if(put_user(val_hi, pusBuffer++))
634 return -EFAULT;
635
636 PRINTK_4(TRACE_3780I,
637 "3780I::dsp3780I_ReadIStore uCount %x val_lo %x val_hi %x\n",
638 uCount, val_lo, val_hi);
639
640 PaceMsaAccess(usDspBaseIO);
641
642 }
643
644 PRINTK_1(TRACE_3780I,
645 "3780I::dsp3780I_ReadIStore exit bRC=TRUE\n");
646
647 return 0;
648}
649
650
651int dsp3780I_WriteIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
652 unsigned uCount, unsigned long ulDSPAddr)
653{
654 unsigned long flags;
655 unsigned short __user *pusBuffer = pvBuffer;
656
657 PRINTK_5(TRACE_3780I,
658 "3780i::dsp3780I_WriteIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
659 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
660
661
662 /*
663 * Set the initial MSA address. To convert from an instruction store
664 * address to an MSA address
665 * shift the address two bits to the left and set bit 22
666 */
667 ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
668 spin_lock_irqsave(&dsp_lock, flags);
669 OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
670 OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
671 spin_unlock_irqrestore(&dsp_lock, flags);
672
673 /* Transfer the memory block */
674 while (uCount-- != 0) {
675 unsigned short val_lo, val_hi;
676 if(get_user(val_lo, pusBuffer++))
677 return -EFAULT;
678 if(get_user(val_hi, pusBuffer++))
679 return -EFAULT;
680 spin_lock_irqsave(&dsp_lock, flags);
681 OutWordDsp(DSP_MsaDataISLow, val_lo);
682 OutWordDsp(DSP_MsaDataDSISHigh, val_hi);
683 spin_unlock_irqrestore(&dsp_lock, flags);
684
685 PRINTK_4(TRACE_3780I,
686 "3780I::dsp3780I_WriteIStore uCount %x val_lo %x val_hi %x\n",
687 uCount, val_lo, val_hi);
688
689 PaceMsaAccess(usDspBaseIO);
690
691 }
692
693 PRINTK_1(TRACE_3780I,
694 "3780I::dsp3780I_WriteIStore exit bRC=TRUE\n");
695
696 return 0;
697}
698
699
700int dsp3780I_GetIPCSource(unsigned short usDspBaseIO,
701 unsigned short *pusIPCSource)
702{
703 unsigned long flags;
704 DSP_HBRIDGE_CONTROL rHBridgeControl;
705 unsigned short temp;
706
707
708 PRINTK_3(TRACE_3780I,
709 "3780i::dsp3780I_GetIPCSource entry usDspBaseIO %x pusIPCSource %p\n",
710 usDspBaseIO, pusIPCSource);
711
712 /*
713 * Disable DSP to PC interrupts, read the interrupt register,
714 * clear the pending IPC bits, and reenable DSP to PC interrupts
715 */
716 spin_lock_irqsave(&dsp_lock, flags);
717 MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
718 rHBridgeControl.EnableDspInt = FALSE;
719 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
720
721 *pusIPCSource = InWordDsp(DSP_Interrupt);
722 temp = (unsigned short) ~(*pusIPCSource);
723
724 PRINTK_3(TRACE_3780I,
725 "3780i::dsp3780I_GetIPCSource, usIPCSource %x ~ %x\n",
726 *pusIPCSource, temp);
727
728 OutWordDsp(DSP_Interrupt, (unsigned short) ~(*pusIPCSource));
729
730 rHBridgeControl.EnableDspInt = TRUE;
731 OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
732 spin_unlock_irqrestore(&dsp_lock, flags);
733
734
735 PRINTK_2(TRACE_3780I,
736 "3780i::dsp3780I_GetIPCSource exit usIPCSource %x\n",
737 *pusIPCSource);
738
739 return 0;
740}