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/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/irq.h>
  60 #include "smapi.h"
  61 #include "mwavedd.h"
  62 #include "3780i.h"
  63
  64 static DEFINE_SPINLOCK(dsp_lock);
  65
  66 static void PaceMsaAccess(unsigned short usDspBaseIO)
  67 {
  68         cond_resched();
  69         udelay(100);
  70         cond_resched();
  71 }
  72
  73 unsigned short dsp3780I_ReadMsaCfg(unsigned short usDspBaseIO,
  74                                    unsigned long ulMsaAddr)
  75 {
  76         unsigned long flags;
  77         unsigned short val;
  78
  79         PRINTK_3(TRACE_3780I,
  80                 "3780i::dsp3780I_ReadMsaCfg entry usDspBaseIO %x ulMsaAddr %lx\n",
  81                 usDspBaseIO, ulMsaAddr);
  82
  83         spin_lock_irqsave(&dsp_lock, flags);
  84         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
  85         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
  86         val = InWordDsp(DSP_MsaDataDSISHigh);
  87         spin_unlock_irqrestore(&dsp_lock, flags);
  88
  89         PRINTK_2(TRACE_3780I, "3780i::dsp3780I_ReadMsaCfg exit val %x\n", val);
  90
  91         return val;
  92 }
  93
  94 void dsp3780I_WriteMsaCfg(unsigned short usDspBaseIO,
  95                           unsigned long ulMsaAddr, unsigned short usValue)
  96 {
  97         unsigned long flags;
  98
  99         PRINTK_4(TRACE_3780I,
 100                 "3780i::dsp3780i_WriteMsaCfg entry usDspBaseIO %x ulMsaAddr %lx usValue %x\n",
 101                 usDspBaseIO, ulMsaAddr, usValue);
 102
 103         spin_lock_irqsave(&dsp_lock, flags);
 104         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulMsaAddr);
 105         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulMsaAddr >> 16));
 106         OutWordDsp(DSP_MsaDataDSISHigh, usValue);
 107         spin_unlock_irqrestore(&dsp_lock, flags);
 108 }
 109
 110 static void dsp3780I_WriteGenCfg(unsigned short usDspBaseIO, unsigned uIndex,
 111                                  unsigned char ucValue)
 112 {
 113         DSP_ISA_SLAVE_CONTROL rSlaveControl;
 114         DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
 115
 116
 117         PRINTK_4(TRACE_3780I,
 118                 "3780i::dsp3780i_WriteGenCfg entry usDspBaseIO %x uIndex %x ucValue %x\n",
 119                 usDspBaseIO, uIndex, ucValue);
 120
 121         MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
 122
 123         PRINTK_2(TRACE_3780I,
 124                 "3780i::dsp3780i_WriteGenCfg rSlaveControl %x\n",
 125                 MKBYTE(rSlaveControl));
 126
 127         rSlaveControl_Save = rSlaveControl;
 128         rSlaveControl.ConfigMode = TRUE;
 129
 130         PRINTK_2(TRACE_3780I,
 131                 "3780i::dsp3780i_WriteGenCfg entry rSlaveControl+ConfigMode %x\n",
 132                 MKBYTE(rSlaveControl));
 133
 134         OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
 135         OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
 136         OutByteDsp(DSP_ConfigData, ucValue);
 137         OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
 138
 139         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_WriteGenCfg exit\n");
 140
 141
 142 }
 143
 144 #if 0
 145 unsigned char dsp3780I_ReadGenCfg(unsigned short usDspBaseIO,
 146                                   unsigned uIndex)
 147 {
 148         DSP_ISA_SLAVE_CONTROL rSlaveControl;
 149         DSP_ISA_SLAVE_CONTROL rSlaveControl_Save;
 150         unsigned char ucValue;
 151
 152
 153         PRINTK_3(TRACE_3780I,
 154                 "3780i::dsp3780i_ReadGenCfg entry usDspBaseIO %x uIndex %x\n",
 155                 usDspBaseIO, uIndex);
 156
 157         MKBYTE(rSlaveControl) = InByteDsp(DSP_IsaSlaveControl);
 158         rSlaveControl_Save = rSlaveControl;
 159         rSlaveControl.ConfigMode = TRUE;
 160         OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl));
 161         OutByteDsp(DSP_ConfigAddress, (unsigned char) uIndex);
 162         ucValue = InByteDsp(DSP_ConfigData);
 163         OutByteDsp(DSP_IsaSlaveControl, MKBYTE(rSlaveControl_Save));
 164
 165         PRINTK_2(TRACE_3780I,
 166                 "3780i::dsp3780i_ReadGenCfg exit ucValue %x\n", ucValue);
 167
 168
 169         return ucValue;
 170 }
 171 #endif  /*  0  */
 172
 173 int dsp3780I_EnableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings,
 174                        unsigned short *pIrqMap,
 175                        unsigned short *pDmaMap)
 176 {
 177         unsigned long flags;
 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
 355 int dsp3780I_DisableDSP(DSP_3780I_CONFIG_SETTINGS * pSettings)
 356 {
 357         unsigned long flags;
 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 long flags;
 388         unsigned short usDspBaseIO = pSettings->usDspBaseIO;
 389         DSP_BOOT_DOMAIN rBootDomain;
 390         DSP_HBRIDGE_CONTROL rHBridgeControl;
 391
 392
 393         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset entry\n");
 394
 395         spin_lock_irqsave(&dsp_lock, flags);
 396         /* Mask DSP to PC interrupt */
 397         MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
 398
 399         PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rHBridgeControl %x\n",
 400                 MKWORD(rHBridgeControl));
 401
 402         rHBridgeControl.EnableDspInt = FALSE;
 403         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 404         spin_unlock_irqrestore(&dsp_lock, flags);
 405
 406         /* Reset the core via the boot domain register */
 407         rBootDomain.ResetCore = TRUE;
 408         rBootDomain.Halt = TRUE;
 409         rBootDomain.NMI = TRUE;
 410         rBootDomain.Reserved = 0;
 411
 412         PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Reset rBootDomain %x\n",
 413                 MKWORD(rBootDomain));
 414
 415         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 416
 417         /* Reset all the chiplets and then reactivate them */
 418         WriteMsaCfg(DSP_ChipReset, 0xFFFF);
 419         udelay(5);
 420         WriteMsaCfg(DSP_ChipReset,
 421                         (unsigned short) (~pSettings->usChipletEnable));
 422
 423
 424         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Reset exit bRC=0\n");
 425
 426         return 0;
 427 }
 428
 429
 430 int dsp3780I_Run(DSP_3780I_CONFIG_SETTINGS * pSettings)
 431 {
 432         unsigned long flags;
 433         unsigned short usDspBaseIO = pSettings->usDspBaseIO;
 434         DSP_BOOT_DOMAIN rBootDomain;
 435         DSP_HBRIDGE_CONTROL rHBridgeControl;
 436
 437
 438         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run entry\n");
 439
 440
 441         /* Transition the core to a running state */
 442         rBootDomain.ResetCore = TRUE;
 443         rBootDomain.Halt = FALSE;
 444         rBootDomain.NMI = TRUE;
 445         rBootDomain.Reserved = 0;
 446         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 447
 448         udelay(5);
 449
 450         rBootDomain.ResetCore = FALSE;
 451         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 452         udelay(5);
 453
 454         rBootDomain.NMI = FALSE;
 455         WriteMsaCfg(DSP_MspBootDomain, MKWORD(rBootDomain));
 456         udelay(5);
 457
 458         /* Enable DSP to PC interrupt */
 459         spin_lock_irqsave(&dsp_lock, flags);
 460         MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
 461         rHBridgeControl.EnableDspInt = TRUE;
 462
 463         PRINTK_2(TRACE_3780I, "3780i::dsp3780i_Run rHBridgeControl %x\n",
 464                 MKWORD(rHBridgeControl));
 465
 466         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 467         spin_unlock_irqrestore(&dsp_lock, flags);
 468
 469
 470         PRINTK_1(TRACE_3780I, "3780i::dsp3780i_Run exit bRC=TRUE\n");
 471
 472         return 0;
 473 }
 474
 475
 476 int dsp3780I_ReadDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 477                         unsigned uCount, unsigned long ulDSPAddr)
 478 {
 479         unsigned long flags;
 480         unsigned short __user *pusBuffer = pvBuffer;
 481         unsigned short val;
 482
 483
 484         PRINTK_5(TRACE_3780I,
 485                 "3780i::dsp3780I_ReadDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 486                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 487
 488
 489         /* Set the initial MSA address. No adjustments need to be made to data store addresses */
 490         spin_lock_irqsave(&dsp_lock, flags);
 491         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 492         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 493         spin_unlock_irqrestore(&dsp_lock, flags);
 494
 495         /* Transfer the memory block */
 496         while (uCount-- != 0) {
 497                 spin_lock_irqsave(&dsp_lock, flags);
 498                 val = InWordDsp(DSP_MsaDataDSISHigh);
 499                 spin_unlock_irqrestore(&dsp_lock, flags);
 500                 if(put_user(val, pusBuffer++))
 501                         return -EFAULT;
 502
 503                 PRINTK_3(TRACE_3780I,
 504                         "3780I::dsp3780I_ReadDStore uCount %x val %x\n",
 505                         uCount, val);
 506
 507                 PaceMsaAccess(usDspBaseIO);
 508         }
 509
 510
 511         PRINTK_1(TRACE_3780I,
 512                 "3780I::dsp3780I_ReadDStore exit bRC=TRUE\n");
 513
 514         return 0;
 515 }
 516
 517 int dsp3780I_ReadAndClearDStore(unsigned short usDspBaseIO,
 518                                 void __user *pvBuffer, unsigned uCount,
 519                                 unsigned long ulDSPAddr)
 520 {
 521         unsigned long flags;
 522         unsigned short __user *pusBuffer = pvBuffer;
 523         unsigned short val;
 524
 525
 526         PRINTK_5(TRACE_3780I,
 527                 "3780i::dsp3780I_ReadAndDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 528                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 529
 530
 531         /* Set the initial MSA address. No adjustments need to be made to data store addresses */
 532         spin_lock_irqsave(&dsp_lock, flags);
 533         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 534         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 535         spin_unlock_irqrestore(&dsp_lock, flags);
 536
 537         /* Transfer the memory block */
 538         while (uCount-- != 0) {
 539                 spin_lock_irqsave(&dsp_lock, flags);
 540                 val = InWordDsp(DSP_ReadAndClear);
 541                 spin_unlock_irqrestore(&dsp_lock, flags);
 542                 if(put_user(val, pusBuffer++))
 543                         return -EFAULT;
 544
 545                 PRINTK_3(TRACE_3780I,
 546                         "3780I::dsp3780I_ReadAndCleanDStore uCount %x val %x\n",
 547                         uCount, val);
 548
 549                 PaceMsaAccess(usDspBaseIO);
 550         }
 551
 552
 553         PRINTK_1(TRACE_3780I,
 554                 "3780I::dsp3780I_ReadAndClearDStore exit bRC=TRUE\n");
 555
 556         return 0;
 557 }
 558
 559
 560 int dsp3780I_WriteDStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 561                          unsigned uCount, unsigned long ulDSPAddr)
 562 {
 563         unsigned long flags;
 564         unsigned short __user *pusBuffer = pvBuffer;
 565
 566
 567         PRINTK_5(TRACE_3780I,
 568                 "3780i::dsp3780D_WriteDStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 569                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 570
 571
 572         /* Set the initial MSA address. No adjustments need to be made to data store addresses */
 573         spin_lock_irqsave(&dsp_lock, flags);
 574         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 575         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 576         spin_unlock_irqrestore(&dsp_lock, flags);
 577
 578         /* Transfer the memory block */
 579         while (uCount-- != 0) {
 580                 unsigned short val;
 581                 if(get_user(val, pusBuffer++))
 582                         return -EFAULT;
 583                 spin_lock_irqsave(&dsp_lock, flags);
 584                 OutWordDsp(DSP_MsaDataDSISHigh, val);
 585                 spin_unlock_irqrestore(&dsp_lock, flags);
 586
 587                 PRINTK_3(TRACE_3780I,
 588                         "3780I::dsp3780I_WriteDStore uCount %x val %x\n",
 589                         uCount, val);
 590
 591                 PaceMsaAccess(usDspBaseIO);
 592         }
 593
 594
 595         PRINTK_1(TRACE_3780I,
 596                 "3780I::dsp3780D_WriteDStore exit bRC=TRUE\n");
 597
 598         return 0;
 599 }
 600
 601
 602 int dsp3780I_ReadIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 603                         unsigned uCount, unsigned long ulDSPAddr)
 604 {
 605         unsigned long flags;
 606         unsigned short __user *pusBuffer = pvBuffer;
 607
 608         PRINTK_5(TRACE_3780I,
 609                 "3780i::dsp3780I_ReadIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 610                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 611
 612         /*
 613         * Set the initial MSA address. To convert from an instruction store
 614         * address to an MSA address
 615         * shift the address two bits to the left and set bit 22
 616         */
 617         ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
 618         spin_lock_irqsave(&dsp_lock, flags);
 619         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 620         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 621         spin_unlock_irqrestore(&dsp_lock, flags);
 622
 623         /* Transfer the memory block */
 624         while (uCount-- != 0) {
 625                 unsigned short val_lo, val_hi;
 626                 spin_lock_irqsave(&dsp_lock, flags);
 627                 val_lo = InWordDsp(DSP_MsaDataISLow);
 628                 val_hi = InWordDsp(DSP_MsaDataDSISHigh);
 629                 spin_unlock_irqrestore(&dsp_lock, flags);
 630                 if(put_user(val_lo, pusBuffer++))
 631                         return -EFAULT;
 632                 if(put_user(val_hi, pusBuffer++))
 633                         return -EFAULT;
 634
 635                 PRINTK_4(TRACE_3780I,
 636                         "3780I::dsp3780I_ReadIStore uCount %x val_lo %x val_hi %x\n",
 637                         uCount, val_lo, val_hi);
 638
 639                 PaceMsaAccess(usDspBaseIO);
 640
 641         }
 642
 643         PRINTK_1(TRACE_3780I,
 644                 "3780I::dsp3780I_ReadIStore exit bRC=TRUE\n");
 645
 646         return 0;
 647 }
 648
 649
 650 int dsp3780I_WriteIStore(unsigned short usDspBaseIO, void __user *pvBuffer,
 651                          unsigned uCount, unsigned long ulDSPAddr)
 652 {
 653         unsigned long flags;
 654         unsigned short __user *pusBuffer = pvBuffer;
 655
 656         PRINTK_5(TRACE_3780I,
 657                 "3780i::dsp3780I_WriteIStore entry usDspBaseIO %x, pusBuffer %p, uCount %x, ulDSPAddr %lx\n",
 658                 usDspBaseIO, pusBuffer, uCount, ulDSPAddr);
 659
 660
 661         /*
 662         * Set the initial MSA address. To convert from an instruction store
 663         * address to an MSA address
 664         * shift the address two bits to the left and set bit 22
 665         */
 666         ulDSPAddr = (ulDSPAddr << 2) | (1 << 22);
 667         spin_lock_irqsave(&dsp_lock, flags);
 668         OutWordDsp(DSP_MsaAddrLow, (unsigned short) ulDSPAddr);
 669         OutWordDsp(DSP_MsaAddrHigh, (unsigned short) (ulDSPAddr >> 16));
 670         spin_unlock_irqrestore(&dsp_lock, flags);
 671
 672         /* Transfer the memory block */
 673         while (uCount-- != 0) {
 674                 unsigned short val_lo, val_hi;
 675                 if(get_user(val_lo, pusBuffer++))
 676                         return -EFAULT;
 677                 if(get_user(val_hi, pusBuffer++))
 678                         return -EFAULT;
 679                 spin_lock_irqsave(&dsp_lock, flags);
 680                 OutWordDsp(DSP_MsaDataISLow, val_lo);
 681                 OutWordDsp(DSP_MsaDataDSISHigh, val_hi);
 682                 spin_unlock_irqrestore(&dsp_lock, flags);
 683
 684                 PRINTK_4(TRACE_3780I,
 685                         "3780I::dsp3780I_WriteIStore uCount %x val_lo %x val_hi %x\n",
 686                         uCount, val_lo, val_hi);
 687
 688                 PaceMsaAccess(usDspBaseIO);
 689
 690         }
 691
 692         PRINTK_1(TRACE_3780I,
 693                 "3780I::dsp3780I_WriteIStore exit bRC=TRUE\n");
 694
 695         return 0;
 696 }
 697
 698
 699 int dsp3780I_GetIPCSource(unsigned short usDspBaseIO,
 700                           unsigned short *pusIPCSource)
 701 {
 702         unsigned long flags;
 703         DSP_HBRIDGE_CONTROL rHBridgeControl;
 704         unsigned short temp;
 705
 706
 707         PRINTK_3(TRACE_3780I,
 708                 "3780i::dsp3780I_GetIPCSource entry usDspBaseIO %x pusIPCSource %p\n",
 709                 usDspBaseIO, pusIPCSource);
 710
 711         /*
 712         * Disable DSP to PC interrupts, read the interrupt register,
 713         * clear the pending IPC bits, and reenable DSP to PC interrupts
 714         */
 715         spin_lock_irqsave(&dsp_lock, flags);
 716         MKWORD(rHBridgeControl) = InWordDsp(DSP_HBridgeControl);
 717         rHBridgeControl.EnableDspInt = FALSE;
 718         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 719
 720         *pusIPCSource = InWordDsp(DSP_Interrupt);
 721         temp = (unsigned short) ~(*pusIPCSource);
 722
 723         PRINTK_3(TRACE_3780I,
 724                 "3780i::dsp3780I_GetIPCSource, usIPCSource %x ~ %x\n",
 725                 *pusIPCSource, temp);
 726
 727         OutWordDsp(DSP_Interrupt, (unsigned short) ~(*pusIPCSource));
 728
 729         rHBridgeControl.EnableDspInt = TRUE;
 730         OutWordDsp(DSP_HBridgeControl, MKWORD(rHBridgeControl));
 731         spin_unlock_irqrestore(&dsp_lock, flags);
 732
 733
 734         PRINTK_2(TRACE_3780I,
 735                 "3780i::dsp3780I_GetIPCSource exit usIPCSource %x\n",
 736                 *pusIPCSource);
 737
 738         return 0;
 739 }