drivers/char/mwave/3780i.c

   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/config.h>
  50 #include <linux/kernel.h>
  51 #include <linux/unistd.h>
  52 #include <linux/delay.h>
  53 #include <linux/ioport.h>
  54 #include <linux/init.h>
  55 #include <linux/bitops.h>
  56 #include <linux/sched.h>        /* cond_resched() */
  57
  58 #include <asm/io.h>
  59 #include <asm/uaccess.h>
  60 #include <asm/system.h>
  61 #include <asm/irq.h>
  62 #include "smapi.h"
  63 #include "mwavedd.h"
  64 #include "3780i.h"
  65
  66 static DEFINE_SPINLOCK(dsp_lock);
  67 static unsigned long flags;
  68
  69
  70 static void PaceMsaAccess(unsigned short usDspBaseIO)
  71 {
  72         cond_resched();
  73         udelay(100);
  74         cond_resched();
  75 }
  76
  77 unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
  78                                    unsigned long ulMsaAddr)
  79 {
  80         unsigned short val;
  81
  82         PRINTK_3(TRACE_3780I,
  83                 "3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lx\n",
  84                 usDspBaseIO, ulMsaAddr);
  85
  86         spin_lock_irqsave(&dsp_lock, flags);
  87         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
  88         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
  89         val = InWordDsp(DSP_MsaDataDSISHigh);
  90         spin_unlock_irqrestore(&dsp_lock, flags);
  91
  92         PRINTK_2(TRACE_3780I, "3780i::dsp3780I_ReadMsaCfg exit val %x\n", val);
  93
  94         return val;
  95 }
  96
  97 void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
  98                           unsigned long ulMsaAddr, unsigned short usValue)
  99 {
 100
 101         PRINTK_4(TRACE_3780I,
 102                 "3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %x\n",
 103                 usDspBaseIO, ulMsaAddr, usValue);
 104
 105         spin_lock_irqsave(&dsp_lock, flags);
 106         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
 107         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
 108         OutWordDsp(DSP_MsaDataDSISHigh, usValue);
 109         spin_unlock_irqrestore(&dsp_lock, flags);
 110 }
 111
 112 static void dsp3780I_WriteGenCfg(unsigned short usDspBaseIO, unsigned uIndex,
 113                                  unsigned char ucValue)
 114 {
 115         DSP_ISA_SLAVE_CONTROL rSlaveControl;
 116         DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
 117
 118
 119         PRINTK_4(TRACE_3780I,
 120                 "3780i::dsp3780i_WriteGenCfg entry usDspBaseIO %x uIndex %x ucValue %x\n",
 121                 usDspBaseIO, uIndex, ucValue);
 122
 123         MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
 124
 125         PRINTK_2(TRACE_3780I,
 126                 "3780i::dsp3780i_WriteGenCfg rSlaveControl %x\n",
 127                 MKBYTE(rSlaveControl));
 128
 129         rSlaveControl_Save = rSlaveControl;
 130         rSlaveControl.ConfigMode = TRUE;
 131
 132         PRINTK_2(TRACE_3780I,
 133                 "3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %x\n",
 134                 MKBYTE(rSlaveControl));
 135
 136         OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
 137         OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
 138         OutByteDsp(DSP_ConfigData, ucValue);
 139         OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
 140
 141         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_WriteGenCfg exit\n");
 142
 143
 144 }
 145
 146 #if 0
 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 #endif  /*  0  */
 174
 175 int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
 176                        unsigned short *pIrqMap,
 177                        unsigned short *pDmaMap)
 178 {
 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
 356 int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
 357 {
 358         unsigned short usDspBaseIO = pSettings->usDspBaseIO;
 359         DSP_ISA_SLAVE_CONTROL rSlaveControl;
 360
 361
 362         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP entry\n");
 363
 364         rSlaveControl.ClockControl = 0;
 365         rSlaveControl.SoftReset = TRUE;
 366         rSlaveControl.ConfigMode = FALSE;
 367         rSlaveControl.Reserved = 0;
 368         spin_lock_irqsave(&dsp_lock, flags);
 369         OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
 370
 371         udelay(5);
 372
 373         rSlaveControl.ClockControl = 1;
 374         OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
 375         spin_unlock_irqrestore(&dsp_lock, flags);
 376
 377         udelay(5);
 378
 379
 380         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_DisableDSP exit\n");
 381
 382         return 0;
 383 }
 384
 385 int dsp3780I_Reset(DSP_3780I_CONFIG_SETTINGS * pSettings)
 386 {
 387         unsigned short usDspBaseIO = pSettings->usDspBaseIO;
 388         DSP_BOOT_DOMAIN rBootDomain;
 389         DSP_HBRIDGE_CONTROL rHBridgeControl;
 390
 391
 392         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entry\n");
 393
 394         spin_lock_irqsave(&dsp_lock, flags);
 395         /* Mask DSP to PC interrupt */
 396         MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
 397
 398         PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %x\n",
 399                 MKWORD(rHBridgeControl));
 400
 401         rHBridgeControl.EnableDspInt = FALSE;
 402         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 403         spin_unlock_irqrestore(&dsp_lock, flags);
 404
 405         /* Reset the core via the boot domain register */
 406         rBootDomain.ResetCore = TRUE;
 407         rBootDomain.Halt = TRUE;
 408         rBootDomain.NMI = TRUE;
 409         rBootDomain.Reserved = 0;
 410
 411         PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rBootDomain %x\n",
 412                 MKWORD(rBootDomain));
 413
 414         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 415
 416         /* Reset all the chiplets and then reactivate them */
 417         WriteMsaCfg(DSP_ChipReset, 0xFFFF);
 418         udelay(5);
 419         WriteMsaCfg(DSP_ChipReset,
 420                         (unsigned short) (~pSettings->usChipletEnable));
 421
 422
 423         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset exit bRC=0\n");
 424
 425         return 0;
 426 }
 427
 428
 429 int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
 430 {
 431         unsigned short usDspBaseIO = pSettings->usDspBaseIO;
 432         DSP_BOOT_DOMAIN rBootDomain;
 433         DSP_HBRIDGE_CONTROL rHBridgeControl;
 434
 435
 436         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entry\n");
 437
 438
 439         /* Transition the core to a running state */
 440         rBootDomain.ResetCore = TRUE;
 441         rBootDomain.Halt = FALSE;
 442         rBootDomain.NMI = TRUE;
 443         rBootDomain.Reserved = 0;
 444         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 445
 446         udelay(5);
 447
 448         rBootDomain.ResetCore = FALSE;
 449         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 450         udelay(5);
 451
 452         rBootDomain.NMI = FALSE;
 453         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 454         udelay(5);
 455
 456         /* Enable DSP to PC interrupt */
 457         spin_lock_irqsave(&dsp_lock, flags);
 458         MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
 459         rHBridgeControl.EnableDspInt = TRUE;
 460
 461         PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Run rHBridgeControl %x\n",
 462                 MKWORD(rHBridgeControl));
 463
 464         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 465         spin_unlock_irqrestore(&dsp_lock, flags);
 466
 467
 468         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run exit bRC=TRUE\n");
 469
 470         return 0;
 471 }
 472
 473
 474 int dsp3780I_ReadDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 475                         unsigned uCount, unsigned long ulDSPAddr)
 476 {
 477         unsigned short __user *pusBuffer = pvBuffer;
 478         unsigned short val;
 479
 480
 481         PRINTK_5(TRACE_3780I,
 482                 "3780i::dsp3780I_ReadDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 483                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 484
 485
 486         /* Set the initial MSA address. No adjustments need to be made to data store addresses */
 487         spin_lock_irqsave(&dsp_lock, flags);
 488         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 489         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 490         spin_unlock_irqrestore(&dsp_lock, flags);
 491
 492         /* Transfer the memory block */
 493         while (uCount-- != 0) {
 494                 spin_lock_irqsave(&dsp_lock, flags);
 495                 val = InWordDsp(DSP_MsaDataDSISHigh);
 496                 spin_unlock_irqrestore(&dsp_lock, flags);
 497                 if(put_user(val, pusBuffer++))
 498                         return -EFAULT;
 499
 500                 PRINTK_3(TRACE_3780I,
 501                         "3780I::dsp3780I_ReadDStore uCount %x val %x\n",
 502                         uCount, val);
 503
 504                 PaceMsaAccess(usDspBaseIO);
 505         }
 506
 507
 508         PRINTK_1(TRACE_3780I,
 509                 "3780I::dsp3780I_ReadDStore exit bRC=TRUE\n");
 510
 511         return 0;
 512 }
 513
 514 int dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,
 515                                 void __user *pvBuffer, unsigned uCount,
 516                                 unsigned long ulDSPAddr)
 517 {
 518         unsigned short __user *pusBuffer = pvBuffer;
 519         unsigned short val;
 520
 521
 522         PRINTK_5(TRACE_3780I,
 523                 "3780i::dsp3780I_ReadAndDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 524                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 525
 526
 527         /* Set the initial MSA address. No adjustments need to be made to data store addresses */
 528         spin_lock_irqsave(&dsp_lock, flags);
 529         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 530         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 531         spin_unlock_irqrestore(&dsp_lock, flags);
 532
 533         /* Transfer the memory block */
 534         while (uCount-- != 0) {
 535                 spin_lock_irqsave(&dsp_lock, flags);
 536                 val = InWordDsp(DSP_ReadAndClear);
 537                 spin_unlock_irqrestore(&dsp_lock, flags);
 538                 if(put_user(val, pusBuffer++))
 539                         return -EFAULT;
 540
 541                 PRINTK_3(TRACE_3780I,
 542                         "3780I::dsp3780I_ReadAndCleanDStore uCount %x val %x\n",
 543                         uCount, val);
 544
 545                 PaceMsaAccess(usDspBaseIO);
 546         }
 547
 548
 549         PRINTK_1(TRACE_3780I,
 550                 "3780I::dsp3780I_ReadAndClearDStore exit bRC=TRUE\n");
 551
 552         return 0;
 553 }
 554
 555
 556 int dsp3780I_WriteDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 557                          unsigned uCount, unsigned long ulDSPAddr)
 558 {
 559         unsigned short __user *pusBuffer = pvBuffer;
 560
 561
 562         PRINTK_5(TRACE_3780I,
 563                 "3780i::dsp3780D_WriteDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 564                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 565
 566
 567         /* Set the initial MSA address. No adjustments need to be made to data store addresses */
 568         spin_lock_irqsave(&dsp_lock, flags);
 569         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 570         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 571         spin_unlock_irqrestore(&dsp_lock, flags);
 572
 573         /* Transfer the memory block */
 574         while (uCount-- != 0) {
 575                 unsigned short val;
 576                 if(get_user(val, pusBuffer++))
 577                         return -EFAULT;
 578                 spin_lock_irqsave(&dsp_lock, flags);
 579                 OutWordDsp(DSP_MsaDataDSISHigh, val);
 580                 spin_unlock_irqrestore(&dsp_lock, flags);
 581
 582                 PRINTK_3(TRACE_3780I,
 583                         "3780I::dsp3780I_WriteDStore uCount %x val %x\n",
 584                         uCount, val);
 585
 586                 PaceMsaAccess(usDspBaseIO);
 587         }
 588
 589
 590         PRINTK_1(TRACE_3780I,
 591                 "3780I::dsp3780D_WriteDStore exit bRC=TRUE\n");
 592
 593         return 0;
 594 }
 595
 596
 597 int dsp3780I_ReadIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 598                         unsigned uCount, unsigned long ulDSPAddr)
 599 {
 600         unsigned short __user *pusBuffer = pvBuffer;
 601
 602         PRINTK_5(TRACE_3780I,
 603                 "3780i::dsp3780I_ReadIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 604                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 605
 606         /*
 607         * Set the initial MSA address. To convert from an instruction store
 608         * address to an MSA address
 609         * shift the address two bits to the left and set bit 22
 610         */
 611         ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
 612         spin_lock_irqsave(&dsp_lock, flags);
 613         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 614         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 615         spin_unlock_irqrestore(&dsp_lock, flags);
 616
 617         /* Transfer the memory block */
 618         while (uCount-- != 0) {
 619                 unsigned short val_lo, val_hi;
 620                 spin_lock_irqsave(&dsp_lock, flags);
 621                 val_lo = InWordDsp(DSP_MsaDataISLow);
 622                 val_hi = InWordDsp(DSP_MsaDataDSISHigh);
 623                 spin_unlock_irqrestore(&dsp_lock, flags);
 624                 if(put_user(val_lo, pusBuffer++))
 625                         return -EFAULT;
 626                 if(put_user(val_hi, pusBuffer++))
 627                         return -EFAULT;
 628
 629                 PRINTK_4(TRACE_3780I,
 630                         "3780I::dsp3780I_ReadIStore uCount %x val_lo %x val_hi %x\n",
 631                         uCount, val_lo, val_hi);
 632
 633                 PaceMsaAccess(usDspBaseIO);
 634
 635         }
 636
 637         PRINTK_1(TRACE_3780I,
 638                 "3780I::dsp3780I_ReadIStore exit bRC=TRUE\n");
 639
 640         return 0;
 641 }
 642
 643
 644 int dsp3780I_WriteIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 645                          unsigned uCount, unsigned long ulDSPAddr)
 646 {
 647         unsigned short __user *pusBuffer = pvBuffer;
 648
 649         PRINTK_5(TRACE_3780I,
 650                 "3780i::dsp3780I_WriteIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 651                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 652
 653
 654         /*
 655         * Set the initial MSA address. To convert from an instruction store
 656         * address to an MSA address
 657         * shift the address two bits to the left and set bit 22
 658         */
 659         ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
 660         spin_lock_irqsave(&dsp_lock, flags);
 661         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 662         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 663         spin_unlock_irqrestore(&dsp_lock, flags);
 664
 665         /* Transfer the memory block */
 666         while (uCount-- != 0) {
 667                 unsigned short val_lo, val_hi;
 668                 if(get_user(val_lo, pusBuffer++))
 669                         return -EFAULT;
 670                 if(get_user(val_hi, pusBuffer++))
 671                         return -EFAULT;
 672                 spin_lock_irqsave(&dsp_lock, flags);
 673                 OutWordDsp(DSP_MsaDataISLow, val_lo);
 674                 OutWordDsp(DSP_MsaDataDSISHigh, val_hi);
 675                 spin_unlock_irqrestore(&dsp_lock, flags);
 676
 677                 PRINTK_4(TRACE_3780I,
 678                         "3780I::dsp3780I_WriteIStore uCount %x val_lo %x val_hi %x\n",
 679                         uCount, val_lo, val_hi);
 680
 681                 PaceMsaAccess(usDspBaseIO);
 682
 683         }
 684
 685         PRINTK_1(TRACE_3780I,
 686                 "3780I::dsp3780I_WriteIStore exit bRC=TRUE\n");
 687
 688         return 0;
 689 }
 690
 691
 692 int dsp3780I_GetIPCSource(unsigned short usDspBaseIO,
 693                           unsigned short *pusIPCSource)
 694 {
 695         DSP_HBRIDGE_CONTROL rHBridgeControl;
 696         unsigned short temp;
 697
 698
 699         PRINTK_3(TRACE_3780I,
 700                 "3780i::dsp3780I_GetIPCSource entry usDspBaseIO %x pusIPCSource %p\n",
 701                 usDspBaseIO, pusIPCSource);
 702
 703         /*
 704         * Disable DSP to PC interrupts, read the interrupt register,
 705         * clear the pending IPC bits, and reenable DSP to PC interrupts
 706         */
 707         spin_lock_irqsave(&dsp_lock, flags);
 708         MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
 709         rHBridgeControl.EnableDspInt = FALSE;
 710         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 711
 712         *pusIPCSource = InWordDsp(DSP_Interrupt);
 713         temp = (unsigned short) ~(*pusIPCSource);
 714
 715         PRINTK_3(TRACE_3780I,
 716                 "3780i::dsp3780I_GetIPCSource, usIPCSource %x ~ %x\n",
 717                 *pusIPCSource, temp);
 718
 719         OutWordDsp(DSP_Interrupt, (unsigned short) ~(*pusIPCSource));
 720
 721         rHBridgeControl.EnableDspInt = TRUE;
 722         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 723         spin_unlock_irqrestore(&dsp_lock, flags);
 724
 725
 726         PRINTK_2(TRACE_3780I,
 727                 "3780i::dsp3780I_GetIPCSource exit usIPCSource %x\n",
 728                 *pusIPCSource);
 729
 730         return 0;
 731 }