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